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| author | marha <marha@users.sourceforge.net> | 2011-03-25 10:41:05 +0000 |
|---|---|---|
| committer | marha <marha@users.sourceforge.net> | 2011-03-25 10:41:05 +0000 |
| commit | 272e57235cd60a2e65ac8258d96a02eb3939b687 (patch) | |
| tree | 789d74bd6ec1cc468f1f81aab97d4e4dfdb2d5c5 /libXmu/doc/Xmu.xml | |
| parent | b39f063f74bf0163eaf34db03134f226d18142ec (diff) | |
| download | vcxsrv-272e57235cd60a2e65ac8258d96a02eb3939b687.tar.gz vcxsrv-272e57235cd60a2e65ac8258d96a02eb3939b687.tar.bz2 vcxsrv-272e57235cd60a2e65ac8258d96a02eb3939b687.zip | |
git update until 25 Mar 2011
xserver
fontconfig
glproto
libXau
libXft
libXmu
libfontenc
libxcb
mesa
mkfontscale
pixman
randrproto
xkeyboard-config
xtrans
xwininfo
updated following packages:
xproto-7.0.21
xineramaproto-1.2.1
libXt-1.1.1
libxkbfile-1.0.7
libXpm-3.5.9
libXfont-1.4.3
libXaw-1.0.9
bdftopcf-1.0.3
encodings-1.0.4
fixesproto-5.0
font-adobe-100dpi-1.0.3
font-adobe-75dpi-1.0.3
font-adobe-utopia-100dpi-1.0.4
font-adobe-utopia-75dpi-1.0.4
font-adobe-utopia-type1-1.0.4
font-alias-1.0.3
font-arabic-misc-1.0.3
font-bh-100dpi-1.0.3
font-bh-75dpi-1.0.3
font-bh-lucidatypewriter-100dpi-1.0.3
font-bh-lucidatypewriter-75dpi-1.0.3
font-bh-ttf-1.0.3
font-bh-type1-1.0.3
font-bitstream-100dpi-1.0.3
font-bitstream-75dpi-1.0.3
font-bitstream-speedo-1.0.2
font-bitstream-type1-1.0.3
font-cronyx-cyrillic-1.0.3
font-cursor-misc-1.0.3
font-daewoo-misc-1.0.3
font-dec-misc-1.0.3
font-ibm-type1-1.0.3
font-isas-misc-1.0.3
font-jis-misc-1.0.3
font-micro-misc-1.0.3
font-misc-cyrillic-1.0.3
font-misc-ethiopic-1.0.3
font-misc-meltho-1.0.3
font-misc-misc-1.1.2
font-mutt-misc-1.0.3
font-schumacher-misc-1.1.2
font-screen-cyrillic-1.0.4
font-sony-misc-1.0.3
font-sun-misc-1.0.3
font-util-1.2.0
font-winitzki-cyrillic-1.0.3
font-xfree86-type1-1.0.4
Diffstat (limited to 'libXmu/doc/Xmu.xml')
| -rw-r--r-- | libXmu/doc/Xmu.xml | 4727 |
1 files changed, 4727 insertions, 0 deletions
diff --git a/libXmu/doc/Xmu.xml b/libXmu/doc/Xmu.xml new file mode 100644 index 000000000..bd79d6efc --- /dev/null +++ b/libXmu/doc/Xmu.xml @@ -0,0 +1,4727 @@ +<?xml version="1.0" encoding="ISO-8859-1"?> +<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" + "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"> +<!-- lifted from troff+ms+XMan by doclifter --> + +<article id='xmu'> + <articleinfo> + <title>Xmu and Xmuu Library API Reference</title> + <abstract><para>“Don't ask.”</para></abstract> + + <legalnotice> + + <para> +Copyright © 1989 X Consortium + </para> + <para> +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the “Software”), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + </para> + <para> +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + </para> + <para> +THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + </para> + <para> +Except as contained in this notice, the name of the X Consortium shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from the X Consortium. + </para> + <para> +<trademark><emphasis>X Window System</emphasis></trademark> +is a trademark of The Open Group. + </para> + + </legalnotice> + </articleinfo> + + <sect1 id='introduction'> + <title>Introduction</title> + + <para> +The Xmu Library is a collection of miscellaneous (some might say random) +utility functions that have been useful in building various applications +and widgets. This library is required by the Athena Widgets. + </para> + + <para> +Starting in XFree86 4.1.0, and incorporated into X11R6.7 and later releases, +a subset of the functions that do not rely on the Athena Widgets (libXaw) +or X Toolkit Instrinsics (libXt) are provided in a second library, libXmuu. + </para> + + <para> +Programs using either of these libraries are encouraged to determine the +correct compiler and linker options via the <userinput>xmu</userinput> or +<userinput>xmuu</userinput> module names for <command>pkg-config</command>, +<indexterm> +<primary><command>pkg-config</command></primary> +</indexterm> +such as: + + <screen> +cc -c xapplication.c `pkg-config --cflags xmu` +cc -o xapplication xapplication.o `pkg-config --libs xmu` + </screen> + </para> + + </sect1> + + <sect1 id='atom_functions'> + <title>Atom Functions</title> + + <para> +To use the functions and macros defined in this section, you should include +the header file +<<filename class='headerfile'>X11/Xmu/Atoms.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Atoms.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <funcsynopsis> + <funcprototype> + <funcdef><function>XA_ATOM_PAIR</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_CHARACTER_POSITION</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_CLASS</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_CLIENT_WINDOW</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_CLIPBOARD</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_COMPOUND_TEXT</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_DECNET_ADDRESS</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_DELETE</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_FILENAME</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_HOSTNAME</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_IP_ADDRESS</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_LENGTH</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_LIST_LENGTH</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_NAME</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_NET_ADDRESS</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_NULL</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_OWNER_OS</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_SPAN</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_TARGETS</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_TEXT</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_TIMESTAMP</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_USER</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + <funcprototype> + <funcdef><function>XA_UTF8_STRING</function></funcdef> + <paramdef><parameter>d</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + <para> + <indexterm> + <primary><type>Atom</type></primary> + </indexterm> +These macros take a display as argument and return an +<type>Atom</type>. +The name of the +atom is obtained from the macro name by removing the leading characters +“<code>XA_</code>”. The +<type>Atom</type> +value is cached, such that subsequent requests do not cause +another round-trip to the server. + </para> + + <para id="XmuMakeAtom"> + <indexterm zone="XmuMakeAtom"> + <primary><function>XmuMakeAtom</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>AtomPtr <function>XmuMakeAtom</function></funcdef> + <paramdef>const char *<parameter>name</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>name</parameter></term> + <listitem><para> +specifies the atom name + </para></listitem> + </varlistentry> + </variablelist> + +This function creates and initializes an opaque object, an +<type>AtomPtr</type>, +for an +<type>Atom</type> +with the +given name. +<function>XmuInternAtom</function> +can be used to cache the Atom value for one or more displays. + </para> + + <para id="XmuNameOfAtom"> + <indexterm zone="XmuNameOfAtom"> + <primary><function>XmuNameOfAtom</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>char *<function>XmuNameOfAtom</function></funcdef> + <paramdef>AtomPtr <parameter>atom_ptr</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>atom_ptr</parameter></term> + <listitem><para> +specifies the AtomPtr + </para></listitem> + </varlistentry> + </variablelist> + +The function returns the name of an AtomPtr. + </para> + + <para id="XmuInternAtom"> + <indexterm zone="XmuInternAtom"> + <primary><function>XmuInternAtom</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Atom <function>XmuInternAtom</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>AtomPtr <parameter>atom_ptr</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>atom_ptr</parameter></term> + <listitem><para> +specifies the AtomPtr + </para></listitem> + </varlistentry> + </variablelist> + +This function returns the +<type>Atom</type> +for an +<type>AtomPtr</type>. +The +<type>Atom</type> +is cached, +such that subsequent requests do not cause another round-trip to the server. + </para> + + <para id="XmuGetAtomName"> + <indexterm zone="XmuGetAtomName"> + <primary><function>XmuGetAtomName</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>char *<function>XmuGetAtomName</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Atom <parameter>atom</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>atom</parameter></term> + <listitem><para> +specifies the atom whose name is desired + </para></listitem> + </varlistentry> + </variablelist> + +This function returns the name of an +<type>Atom</type>. +The result is cached, such that subsequent +requests do not cause another round-trip to the server. + </para> + + <para id="XmuInternStrings"> + <indexterm zone="XmuInternStrings"> + <primary><function>XmuInternStrings</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuInternStrings</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>String *<parameter>names</parameter></paramdef> + <paramdef>Cardinal <parameter>count</parameter></paramdef> + <paramdef>Atom *<parameter>atoms</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>names</parameter></term> + <listitem><para> +specifies the strings to intern + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>count</parameter></term> + <listitem><para> +specifies the number of strings + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>atoms</parameter></term> + <listitem><para> +returns the list of Atom values + </para></listitem> + </varlistentry> + </variablelist> + +This function converts a list of atom names into +<type>Atom</type> +values. The results are cached, such +that subsequent requests do not cause further round-trips to the server. +The caller is responsible for preallocating the array pointed at by atoms. + </para> + + </sect1> + + <sect1 id='error_handler_functions'> + <title>Error Handler Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/Error.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Error.h</filename></primary> +</indexterm> +and link against the libXmu or libXmuu library. + </para> + + <para id="XmuPrintDefaultErrorMessage"> + <indexterm zone="XmuPrintDefaultErrorMessage"> + <primary><function>XmuPrintDefaultErrorMessage</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuPrintDefaultErrorMessage</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XErrorEvent *<parameter>event</parameter></paramdef> + <paramdef>FILE *<parameter>fp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the error + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fp</parameter></term> + <listitem><para> + specifies where to print the error message + </para></listitem> + </varlistentry> + </variablelist> + +This function prints an error message, equivalent to Xlib's default error +message for protocol errors. It returns a non-zero value +if the caller should consider exiting, otherwise it returns 0. +This function can be used when you need to +write your own error handler, but need to print out an error from within +that handler. + </para> + + <para id="XmuSimpleErrorHandler"> + <indexterm zone="XmuSimpleErrorHandler"> + <primary><function>XmuSimpleErrorHandler</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuSimpleErrorHandler</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XErrorEvent *<parameter>errorp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>errorp</parameter></term> + <listitem><para> +specifies the error + </para></listitem> + </varlistentry> + </variablelist> + +This function ignores errors for +<errorname>BadWindow</errorname> +errors for +<function>XQueryTree</function> +and +<function>XGetWindowAttributes</function>, +and ignores +<errorname>BadDrawable</errorname> +errors for +<function>XGetGeometry</function>; +it returns 0 in those cases. Otherwise, it prints the default error message, +and returns a non-zero value if the caller should consider exiting, +and 0 if the caller should not exit. + </para> + </sect1> + + <sect1 id='system_utility_functions'> + <title>System Utility Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/SysUtil.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/SysUtil.h</filename></primary> +</indexterm> +and link against the libXmu or libXmuu library. + </para> + + <para id="XmuGetHostname"> + <indexterm zone="XmuGetHostname"> + <primary><function>XmuGetHostname</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuGetHostname</function></funcdef> + <paramdef>char *<parameter>buf</parameter></paramdef> + <paramdef>int <parameter>maxlen</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>buf</parameter></term> + <listitem><para> +returns the host name + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>maxlen</parameter></term> + <listitem><para> +specifies the length of <parameter>buf</parameter> + </para></listitem> + </varlistentry> + </variablelist> + +This function stores the null terminated name of the local host in +<parameter>buf</parameter>, and +returns length of the name. This function hides operating system differences, +such as whether to call <function>gethostname</function> or +<function>uname</function>. + </para> + + <para id="XmuSnprintf"> + <indexterm zone="XmuSnprintf"> + <primary><function>XmuSnprintf</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuSnprintf</function></funcdef> + <paramdef>char *<parameter>str</parameter></paramdef> + <paramdef>int <parameter>size</parameter></paramdef> + <paramdef><parameter>...</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>str</parameter></term> + <listitem><para> +string to write output to + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>size</parameter></term> + <listitem><para> +specifies the size of <parameter>str</parameter> + </para></listitem> + </varlistentry> + </variablelist> + +This function was provided as a portable implementation of +<function>snprintf</function> before all platforms could be +relied on to provide their own. It is now deprecated in favor of +calling <function>snprintf</function> directly and should only be used +in software that needs to continue to support non-Unix98 compliant platforms. + </para> + + + </sect1> + + <sect1 id='window_utility_functions'> + <title>Window Utility Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/WinUtil.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/WinUtil.h</filename></primary> +</indexterm>. +To use <function>XmuClientWindow</function>, you may link against either the +libXmu or libXmuu libraries. The other functions in this section require +linking against the libXmu library. + </para> + + <para id="XmuScreenOfWindow"> + <indexterm zone="XmuScreenOfWindow"> + <primary><function>XmuScreenOfWindow</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Screen *<function>XmuScreenOfWindow</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Window <parameter>w</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>w</parameter></term> + <listitem><para> +specifies the window + </para></listitem> + </varlistentry> + </variablelist> + +This function returns the +<type>Screen</type> +on which the specified window was created. + </para> + + <para id="XmuClientWindow"> + <indexterm zone="XmuClientWindow"> + <primary><function>XmuClientWindow</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Window <function>XmuClientWindow</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Window <parameter>win</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>win</parameter></term> + <listitem><para> +specifies the window + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuClientWindow"> + <primary><property>WM_STATE</property></primary> + </indexterm> +This function finds a window, at or below the specified window, which has a +<property>WM_STATE</property> property. If such a window is found, it is +returned, otherwise the +argument window is returned. + </para> + + <para id="XmuUpdateMapHints"> + <indexterm zone="XmuUpdateMapHints"> + <primary><function>XmuUpdateMapHints</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Bool <function>XmuUpdateMapHints</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Window <parameter>w</parameter></paramdef> + <paramdef>XSizeHints *<parameter>hints</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>win</parameter></term> + <listitem><para> +specifies the window + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>hints</parameter></term> + <listitem><para> +specifies the new hints, or <symbol>NULL</symbol> + </para></listitem> + </varlistentry> + </variablelist> + +This function clears the +<symbol>PPosition</symbol> +and +<symbol>PSize</symbol> +flags and sets the +<symbol>USPosition</symbol> +and +<symbol>USSize</symbol> +flags in the hints structure, and then stores the hints for the +window using + <indexterm zone="XmuUpdateMapHints"> + <primary><function>XSetWMNormalHints</function></primary> + </indexterm> +<function>XSetWMNormalHints</function> +and returns +<symbol>True</symbol>. +If <symbol>NULL</symbol> is passed for the +hints structure, then the current hints are read back from the window using + <indexterm zone="XmuUpdateMapHints"> + <primary><function>XGetWMNormalHints</function></primary> + </indexterm> +<function>XGetWMNormalHints</function> +and are used instead, and +<symbol>True</symbol> +is returned; otherwise +<symbol>False</symbol> +is returned. + </para> + + </sect1> + + <sect1 id='cursor_utility_functions'> + <title>Cursor Utility Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/CurUtil.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/CurUtil.h</filename></primary> +</indexterm> +and link against the libXmu or libXmuu library. + </para> + + <para id="XmuCursorNameToIndex"> + <indexterm zone="XmuCursorNameToIndex"> + <primary><function>XmuCursorNameToIndex</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuCursorNameToIndex</function></funcdef> + <paramdef>const char *<parameter>name</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>name</parameter></term> + <listitem><para> +specifies the name of the cursor + </para></listitem> + </varlistentry> + </variablelist> + +This function takes the name of a standard cursor and returns its index +in the standard cursor font. The cursor names are formed by removing the +“<code>XC_</code>” prefix from the cursor defines listed in +Appendix B of the Xlib +manual. + </para> + + </sect1> + + <sect1 id='graphics_functions'> + <title>Graphics Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/Drawing.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Drawing.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para id="XmuDrawRoundedRectangle"> + <indexterm zone="XmuDrawRoundedRectangle"> + <primary><function>XmuDrawRoundedRectangle</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuDrawRoundedRectangle</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Drawable <parameter>draw</parameter></paramdef> + <paramdef>GC <parameter>gc</parameter></paramdef> + <paramdef>int <parameter>x</parameter></paramdef> + <paramdef>int <parameter>y</parameter></paramdef> + <paramdef>int <parameter>w</parameter></paramdef> + <paramdef>int <parameter>h</parameter></paramdef> + <paramdef>int <parameter>ew</parameter></paramdef> + <paramdef>int <parameter>eh</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>draw</parameter></term> + <listitem><para> +specifies the drawable + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>gc</parameter></term> + <listitem><para> +specifies the GC + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>x</parameter></term> + <listitem><para> +specifies the upper left x coordinate + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>y</parameter></term> + <listitem><para> +specifies the upper left y coordinate + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>w</parameter></term> + <listitem><para> +specifies the rectangle width + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>h</parameter></term> + <listitem><para> +specifies the rectangle height + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>ew</parameter></term> + <listitem><para> +specifies the corner width + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>eh</parameter></term> + <listitem><para> +specifies the corner height + </para></listitem> + </varlistentry> + </variablelist> + +This function draws a rounded rectangle, where x, y, w, h are the dimensions +of the overall rectangle, and ew and eh are the sizes of a bounding box that +the corners are drawn inside of; ew should be no more than half of w, and eh +should be no more than half of h. The current GC line attributes control +all attributes of the line. + </para> + + <para id="XmuFillRoundedRectangle"> + <indexterm zone="XmuFillRoundedRectangle"> + <primary><function>XmuFillRoundedRectangle</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuFillRoundedRectangle</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Drawable <parameter>draw</parameter></paramdef> + <paramdef>GC <parameter>gc</parameter></paramdef> + <paramdef>int <parameter>x</parameter></paramdef> + <paramdef>int <parameter>y</parameter></paramdef> + <paramdef>int <parameter>w</parameter></paramdef> + <paramdef>int <parameter>h</parameter></paramdef> + <paramdef>int <parameter>ew</parameter></paramdef> + <paramdef>int <parameter>eh</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>draw</parameter></term> + <listitem><para> +specifies the drawable + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>gc</parameter></term> + <listitem><para> +specifies the GC + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>x</parameter></term> + <listitem><para> +specifies the upper left x coordinate + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>y</parameter></term> + <listitem><para> +specifies the upper left y coordinate + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>w</parameter></term> + <listitem><para> +specifies the rectangle width + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>h</parameter></term> + <listitem><para> +specifies the rectangle height + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>ew</parameter></term> + <listitem><para> +specifies the corner width + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>eh</parameter></term> + <listitem><para> +specifies the corner height + </para></listitem> + </varlistentry> + </variablelist> + +This function draws a filled rounded rectangle, where x, y, w, h are the +dimensions of the overall rectangle, and ew and eh are the sizes of a +bounding box that the corners are drawn inside of; ew should be no more than +half of w, and eh should be no more than half of h. The current GC fill +settings control all attributes of the fill contents. + </para> + + <para id="XmuDrawLogo"> + <indexterm zone="XmuDrawLogo"> + <primary><function>XmuDrawLogo</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef><function>XmuDrawLogo</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Drawable <parameter>drawable</parameter></paramdef> + <paramdef>GC <parameter>gcFore</parameter></paramdef> + <paramdef>GC <parameter>gcBack</parameter></paramdef> + <paramdef>int <parameter>x</parameter></paramdef> + <paramdef>int <parameter>y</parameter></paramdef> + <paramdef>unsigned int <parameter>width</parameter></paramdef> + <paramdef>unsigned int <parameter>height</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>drawable</parameter></term> + <listitem><para> +specifies the drawable + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>gcFore</parameter></term> + <listitem><para> +specifies the foreground GC + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>gcBack</parameter></term> + <listitem><para> +specifies the background GC + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>x</parameter></term> + <listitem><para> +specifies the upper left x coordinate + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>y</parameter></term> + <listitem><para> +specifies the upper left y coordinate + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>width</parameter></term> + <listitem><para> +specifies the logo width + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>height</parameter></term> + <listitem><para> +specifies the logo height + </para></listitem> + </varlistentry> + </variablelist> + + <figure id="xlogo" float="1" pgwide="0"> + <title>The X Logo</title> + <mediaobject> + <imageobject> + <imagedata id="xlogo-svg" format="SVG" fileref="xlogo.svg"/> + </imageobject> + </mediaobject> + </figure> + +This function draws the “official” X Window System logo +(<xref linkend="xlogo"/>). The bounding box +of the logo in the drawable is given by x, y, width, and height. The logo +itself is filled using gcFore, and the rest of the rectangle is filled using +gcBack. + </para> + + <para id="XmuCreateStippledPixmap"> + <indexterm zone="XmuCreateStippledPixmap"> + <primary><function>XmuCreateStippledPixmap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Pixmap <function>XmuCreateStippledPixmap</function></funcdef> + <paramdef>Screen *<parameter>screen</parameter></paramdef> + <paramdef>Pixel <parameter>fore</parameter></paramdef> + <paramdef>Pixel <parameter>back</parameter></paramdef> + <paramdef>unsigned int <parameter>depth</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen the pixmap is created on + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fore</parameter></term> + <listitem><para> +specifies the foreground pixel value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>back</parameter></term> + <listitem><para> +specifies the background pixel value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>depth</parameter></term> + <listitem><para> +specifies the depth of the pixmap + </para></listitem> + </varlistentry> + </variablelist> + +This function creates a two pixel by one pixel stippled pixmap of specified +depth on the specified screen. The pixmap is cached so that multiple +requests share the same pixmap. The pixmap should be freed with +<function>XmuReleaseStippledPixmap</function> +to maintain correct reference counts. + </para> + + <para id="XmuReleaseStippledPixmap"> + <indexterm zone="XmuReleaseStippledPixmap"> + <primary><function>XmuReleaseStippledPixmap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuReleaseStippledPixmap</function></funcdef> + <paramdef>Screen *<parameter>screen</parameter></paramdef> + <paramdef>Pixmap <parameter>pixmap</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen the pixmap was created on + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>pixmap</parameter></term> + <listitem><para> +specifies the pixmap to free + </para></listitem> + </varlistentry> + </variablelist> + +This function frees a pixmap created with +<function>XmuCreateStippledPixmap</function>. + </para> + + <para id="XmuReadBitmapData"> + <indexterm zone="XmuReadBitmapData"> + <primary><function>XmuReadBitmapData</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuReadBitmapData</function></funcdef> + <paramdef>FILE *<parameter>fstream</parameter></paramdef> + <paramdef>unsigned int *<parameter>width</parameter></paramdef> + <paramdef>unsigned int *<parameter>height</parameter></paramdef> + <paramdef>unsigned char **<parameter>datap</parameter></paramdef> + <paramdef>int *<parameter>x_hot</parameter></paramdef> + <paramdef>int *<parameter>y_hot</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>fstream</parameter></term> + <listitem><para> +specifies the stream to read from + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>width</parameter></term> + <listitem><para> +returns the width of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>height</parameter></term> + <listitem><para> +returns the height of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>datap</parameter></term> + <listitem><para> +returns the parsed bitmap data + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>x_hot</parameter></term> + <listitem><para> +returns the x coordinate of the hotspot + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>y_hot</parameter></term> + <listitem><para> +returns the y coordinate of the hotspot + </para></listitem> + </varlistentry> + </variablelist> + +This function reads a standard bitmap file description from the specified +stream, and returns the parsed data in a format suitable for passing to +<function>XCreateBitmapFromData</function>. +The return value of the function has the same +interpretation as the return value for +<function>XReadBitmapFile</function>. + </para> + + <para id="XmuReadBitmapDataFromFile"> + <indexterm zone="XmuReadBitmapDataFromFile"> + <primary><function>XmuReadBitmapDataFromFile</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuReadBitmapDataFromFile</function></funcdef> + <paramdef>const char *<parameter>filename</parameter></paramdef> + <paramdef>unsigned int *<parameter>width</parameter></paramdef> + <paramdef>unsigned int *<parameter>height</parameter></paramdef> + <paramdef>unsigned char **<parameter>datap</parameter></paramdef> + <paramdef>int *<parameter>x_hot</parameter></paramdef> + <paramdef>int *<parameter>y_hot</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>fstream</parameter></term> + <listitem><para> +specifies the file to read from + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>width</parameter></term> + <listitem><para> +returns the width of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>height</parameter></term> + <listitem><para> +returns the height of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>datap</parameter></term> + <listitem><para> +returns the parsed bitmap data + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>x_hot</parameter></term> + <listitem><para> +returns the x coordinate of the hotspot + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>y_hot</parameter></term> + <listitem><para> +returns the y coordinate of the hotspot + </para></listitem> + </varlistentry> + </variablelist> + +This function reads a standard bitmap file description from the specified +file, and returns the parsed data in a format suitable for passing to +<function>XCreateBitmapFromData</function>. +The return value of the function has the same +interpretation as the return value for +<function>XReadBitmapFile</function>. + </para> + + <para id="XmuLocateBitmapFile"> + <indexterm zone="XmuLocateBitmapFile"> + <primary><function>XmuLocateBitmapFile</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Pixmap <function>XmuLocateBitmapFile</function></funcdef> + <paramdef>Screen *<parameter>screen</parameter></paramdef> + <paramdef>const char *<parameter>name</parameter></paramdef> + <paramdef>char *<parameter>srcname</parameter></paramdef> + <paramdef>int <parameter>srcnamelen</parameter></paramdef> + <paramdef>int *<parameter>widthp</parameter></paramdef> + <paramdef>int *<parameter>heightp</parameter></paramdef> + <paramdef>int *<parameter>xhotp</parameter></paramdef> + <paramdef>int *<parameter>yhotp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen the pixmap is created on + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>name</parameter></term> + <listitem><para> +specifies the file to read from + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>srcname</parameter></term> + <listitem><para> +returns the full filename of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>srcnamelen</parameter></term> + <listitem><para> +specifies the length of the srcname buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>width</parameter></term> + <listitem><para> +returns the width of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>height</parameter></term> + <listitem><para> +returns the height of the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>xhotp</parameter></term> + <listitem><para> +returns the x coordinate of the hotspot + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>yhotp</parameter></term> + <listitem><para> +returns the y coordinate of the hotspot + </para></listitem> + </varlistentry> + </variablelist> + +This function reads a file in standard bitmap file format, using +<function>XReadBitmapFile</function>, +and returns the created bitmap. The filename may be +absolute, or relative to the global resource named + <indexterm zone="XmuLocateBitmapFile"> + <primary><systemitem class="resource">bitmapFilePath</systemitem></primary> + </indexterm> +<systemitem class="resource">bitmapFilePath</systemitem> with class +BitmapFilePath. If the resource is not defined, the default value is the +build symbol BITMAPDIR, which is typically +"<filename class="directory">/usr/include/X11/bitmaps</filename>". +If <parameter>srcnamelen</parameter> is greater than zero and +<parameter>srcname</parameter> is not <symbol>NULL</symbol>, +the null terminated filename will be copied into +<parameter>srcname</parameter>. The size and hotspot of the bitmap are +also returned. + </para> + + <para id="XmuCreatePixmapFromBitmap"> + <indexterm zone="XmuCreatePixmapFromBitmap"> + <primary><function>XmuCreatePixmapFromBitmap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Pixmap <function>XmuCreatePixmapFromBitmap</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Drawable <parameter>d</parameter></paramdef> + <paramdef>Pixmap <parameter>bitmap</parameter></paramdef> + <paramdef>unsigned int <parameter>width</parameter></paramdef> + <paramdef>unsigned int <parameter>height</parameter></paramdef> + <paramdef>unsigned int <parameter>depth</parameter></paramdef> + <paramdef>unsigned long <parameter>fore</parameter></paramdef> + <paramdef>unsigned long <parameter>back</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen the pixmap is created on + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>bitmap</parameter></term> + <listitem><para> +specifies the bitmap source + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>width</parameter></term> + <listitem><para> +specifies the width of the pixmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>height</parameter></term> + <listitem><para> +specifies the height of the pixmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>depth</parameter></term> + <listitem><para> +specifies the depth of the pixmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fore</parameter></term> + <listitem><para> +specifies the foreground pixel value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>back</parameter></term> + <listitem><para> +specifies the background pixel value + </para></listitem> + </varlistentry> + </variablelist> + +This function creates a pixmap of the specified width, height, and depth, on +the same screen as the specified drawable, and then performs an +<function>XCopyPlane</function> +from the specified bitmap to the pixmap, +using the specified foreground and background pixel values. +The created pixmap is returned. + </para> + + </sect1> + + <sect1 id='selection_functions'> + <title>Selection Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/StdSel.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/StdSel.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para id="XmuConvertStandardSelection"> + <indexterm zone="XmuConvertStandardSelection"> + <primary><function>XmuConvertStandardSelection</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Boolean <function>XmuConvertStandardSelection</function></funcdef> + <paramdef>Widget <parameter>w</parameter></paramdef> + <paramdef>Time <parameter>time</parameter></paramdef> + <paramdef>Atom *<parameter>selection</parameter></paramdef> + <paramdef>Atom *<parameter>target</parameter></paramdef> + <paramdef>Atom *<parameter>type</parameter></paramdef> + <paramdef>XPointer <parameter>value</parameter></paramdef> + <paramdef>unsigned long *<parameter>length</parameter></paramdef> + <paramdef>int *<parameter>format</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>w</parameter></term> + <listitem><para> +specifies the widget which currently owns the selection + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>time</parameter></term> + <listitem><para> +specifies the time at which the selection was established + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>selection</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>target</parameter></term> + <listitem><para> +specifies the target type of the selection + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>type</parameter></term> + <listitem><para> +returns the property type of the converted value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>value</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>length</parameter></term> + <listitem><para> +returns the number of elements in the converted value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>format</parameter></term> + <listitem><para> +returns the size in bits of the elements</para> + </listitem> + </varlistentry> + </variablelist> + +This function converts the following standard selections: CLASS, +CLIENT_WINDOW, DECNET_ADDRESS, HOSTNAME, IP_ADDRESS, NAME, OWNER_OS, +TARGETS, TIMESTAMP, and USER. It returns +<symbol>True</symbol> +if the conversion was successful, else it returns +<symbol>False</symbol>. + </para> + </sect1> + + <sect1 id='type_converter_functions'> + <title>Type Converter Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/Converters.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Converters.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para id="XmuCvtFunctionToCallback"> + <indexterm zone="XmuCvtFunctionToCallback"> + <primary><function>XmuCvtFunctionToCallback</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtFunctionToCallback</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +the function to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +the place to store the converted value + </para></listitem> + </varlistentry> + </variablelist> + +This function converts a callback procedure to a callback list containing +that procedure, with <symbol>NULL</symbol> closure data. To use this converter, include the +following in your widget's ClassInitialize procedure: + + <programlisting> +XtAddConverter(XtRCallProc, XtRCallback, XmuCvtFunctionToCallback, NULL, 0); + </programlisting> + </para> + + <para id="XmuCvtStringToBackingStore"> + <indexterm zone="XmuCvtStringToBackingStore"> + <primary><function>XmuCvtStringToBackingStore</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToBackingStore</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument must be a pointer to a Cardinal containing the value 0 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToBackingStore"> + <primary>backing-store</primary> + </indexterm> +This function converts a string to a backing-store integer as defined in +<<filename class='headerfile'>X11/X.h</filename>>. +The string "notUseful" converts to +<symbol>NotUseful</symbol>, +"whenMapped" converts to +<symbol>WhenMapped</symbol>, +and "always" converts to +<symbol>Always</symbol>. +The string "default" converts to the value +<symbol>Always</symbol> + +<symbol>WhenMapped</symbol> + +<symbol>NotUseful</symbol>. +The case of the string does not matter. +To use this converter, include the following +in your widget's ClassInitialize procedure: + + <programlisting> +XtAddConverter(XtRString, XtRBackingStore, XmuCvtStringToBackingStore, NULL, 0); + </programlisting> + </para> + + <para id="XmuCvtStringToBitmap"> + <indexterm zone="XmuCvtStringToBitmap"> + <primary><function>XmuCvtStringToBitmap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToBitmap</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +the sole argument specifies the Screen on which to create the bitmap + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +must be the value 1 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToBitmap"> + <primary>window manager icons</primary> + </indexterm> +This function creates a bitmap (a Pixmap of depth one) suitable for window +manager icons. The string argument is the name of a file in standard bitmap +file format. For the possible filename specifications, see +<link linkend="XmuLocateBitmapFile"><function>XmuLocateBitmapFile</function></link>. +To use this converter, include the following in your widget's +ClassInitialize procedure: + + <programlisting> +static XtConvertArgRec screenConvertArg[] = { + {XtBaseOffset, (XtPointer)XtOffset(Widget, core.screen), sizeof(Screen *)} +}; + +XtAddConverter(XtRString, XtRBitmap, XmuCvtStringToBitmap, + screenConvertArg, XtNumber(screenConvertArg)); + </programlisting> + </para> + + <para id="XmuCvtStringToColorCursor"> + <indexterm zone="XmuCvtStringToColorCursor"> + <primary><function>XmuCvtStringToColorCursor</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Boolean <function>XmuCvtStringToColorCursor</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + <paramdef>XtPointer *<parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the display to use for conversion warnings + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +specifies the required conversion arguments + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +specifies the number of required conversion arguments, which is 4 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToColorCursor"> + <primary><type>Cursor</type></primary> + </indexterm> +This function converts a string to a +<type>Cursor</type> +with the foreground and background pixels specified by the conversion +arguments. The string can either be a +standard cursor name formed by removing the <code>“XC_”</code> +prefix from any of the +cursor defines listed in Appendix B of the Xlib Manual, a font name and +glyph index in decimal of the form "FONT fontname index [[font] index]", +or a bitmap filename acceptable to +<link linkend="XmuLocateBitmapFile"><function>XmuLocateBitmapFile</function></link>. +To use this converter, include +the following in the widget ClassInitialize procedure: + + <programlisting> +static XtConvertArgRec colorCursorConvertArgs[] = { + {XtWidgetBaseOffset, (XtPointer) XtOffsetOf(WidgetRec, core.screen), + sizeof(Screen *)}, + {XtResourceString, (XtPointer) XtNpointerColor, sizeof(Pixel)}, + {XtResourceString, (XtPointer) XtNpointerColorBackground, sizeof(Pixel)}, + {XtWidgetBaseOffset, (XtPointer) XtOffsetOf(WidgetRec, core.colormap), + sizeof(Colormap)} +}; + + +XtSetTypeConverter(XtRString, XtRColorCursor, XmuCvtStringToColorCursor, + colorCursorConvertArgs, XtNumber(colorCursorConvertArgs), + XtCacheByDisplay, NULL); + </programlisting> + +The widget must recognize XtNpointerColor and XtNpointerColorBackground as +resources, or specify other appropriate foreground and background resources. +The widget's Realize and SetValues methods must cause the converter to be +invoked with the appropriate arguments when one of the foreground, +background, or cursor resources has changed, or when the window is created, +and must assign the cursor to the window of the widget. + </para> + + <para id="XmuCvtStringToCursor"> + <indexterm zone="XmuCvtStringToCursor"> + <primary><function>XmuCvtStringToCursor</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToCursor</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +specifies the required conversion argument, the screen + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +specifies the number of required conversion arguments, which is 1 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToCursor"> + <primary><type>Cursor</type></primary> + </indexterm> +This function converts a string to a +<type>Cursor</type>. +The string can either be a +standard cursor name formed by removing the <code>“XC_”</code> +prefix from any of the +cursor defines listed in Appendix B of the Xlib Manual, a font name and +glyph index in decimal of the form "FONT fontname index [[font] index]", or +a bitmap filename acceptable to +<link linkend="XmuLocateBitmapFile"><function>XmuLocateBitmapFile</function></link>. +To use this converter, include +the following in your widget's ClassInitialize procedure: + + <programlisting> +static XtConvertArgRec screenConvertArg[] = { + {XtBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.screen), sizeof(Screen *)} +}; + +XtAddConverter(XtRString, XtRCursor, XmuCvtStringToCursor, + screenConvertArg, XtNumber(screenConvertArg)); + </programlisting> + </para> + + <para id="XmuCvtStringToGravity"> + <indexterm zone="XmuCvtStringToGravity"> + <primary><function>XmuCvtStringToGravity</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToGravity</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument must be a pointer to a Cardinal containing the value 0 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToGravity"> + <primary><type>XtGravity</type></primary> + </indexterm> +This function converts a string to an +<type>XtGravity</type> +enumeration value. The string "forget" and a <symbol>NULL</symbol> value convert to +<symbol>ForgetGravity</symbol>, +"NorthWestGravity" converts to +<symbol>NorthWestGravity</symbol>, +the strings "NorthGravity" and "top" convert to +<symbol>NorthGravity</symbol>, +"NorthEastGravity" converts to +<symbol>NorthEastGravity</symbol>, +the strings "West" and "left" convert to +<symbol>WestGravity</symbol>, +"CenterGravity" converts to +<symbol>CenterGravity</symbol>, +"EastGravity" and "right" convert to +<symbol>EastGravity</symbol>, +"SouthWestGravity" converts to +<symbol>SouthWestGravity</symbol>, +"SouthGravity" and "bottom" convert to +<symbol>SouthGravity</symbol>, +"SouthEastGravity" converts to +<symbol>SouthEastGravity</symbol>, +"StaticGravity" converts to +<symbol>StaticGravity</symbol>, +and "UnmapGravity" converts to +<symbol>UnmapGravity</symbol>. +The case of the string does not matter. To use this converter, include +the following in your widget's class initialize procedure: + + <programlisting> +XtAddConverter(XtRString, XtRGravity, XmuCvtStringToGravity, NULL, 0); + </programlisting> + </para> + + <para id="XmuCvtStringToJustify"> + <indexterm zone="XmuCvtStringToJustify"> + <primary><function>XmuCvtStringToJustify</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToJustify</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToJustify"> + <primary><type>XtJustify</type></primary> + </indexterm> +This function converts a string to an +<type>XtJustify</type> +enumeration value. The string "left" converts to +<symbol>XtJustifyLeft</symbol>, +"center" converts to +<symbol>XtJustifyCenter</symbol>, +and "right" converts to +<symbol>XtJustifyRight</symbol>. +The case of the string does not matter. To use this converter, +include the following in your widget's ClassInitialize procedure: + + <programlisting> +XtAddConverter(XtRString, XtRJustify, XmuCvtStringToJustify, NULL, 0); + </programlisting> + </para> + + <para id="XmuCvtStringToLong"> + <indexterm zone="XmuCvtStringToLong"> + <primary><function>XmuCvtStringToLong</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToLong</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument must be a pointer to a Cardinal containing 0 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + +This function converts a string to an integer of type long. It parses the +string using +<function>sscanf</function> +with a format of "%ld". To use this converter, include +the following in your widget's ClassInitialize procedure: + + <programlisting> +XtAddConverter(XtRString, XtRLong, XmuCvtStringToLong, NULL, 0); + </programlisting> + </para> + + <para id="XmuCvtStringToOrientation"> + <indexterm zone="XmuCvtStringToOrientation"> + <primary><function>XmuCvtStringToOrientation</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToOrientation</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuCvtStringToOrientation"> + <primary><type>XtOrientation</type></primary> + </indexterm> +This function converts a string to an +<type>XtOrientation</type> +enumeration value. The string "horizontal" converts to +<symbol>XtorientHorizontal</symbol> +and "vertical" converts to +<symbol>XtorientVertical</symbol>. +The case of the string does not matter. To use this converter, +include the following in your widget's ClassInitialize procedure: + + <programlisting> +XtAddConverter(XtRString, XtROrientation, XmuCvtStringToOrientation, NULL, 0); + </programlisting> + </para> + + <para id="XmuCvtStringToShapeStyle"> + <indexterm zone="XmuCvtStringToShapeStyle"> + <primary><function>XmuCvtStringToShapeStyle</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Boolean <function>XmuCvtStringToShapeStyle</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + <paramdef>XtPointer *<parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +the display to use for conversion warnings + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +the value to convert from + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +the place to store the converted value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + </variablelist> + +This function converts a string to an integer shape style. The string +"rectangle" converts to +<symbol>XmuShapeRectangle</symbol>, +"oval" converts to +<symbol>XmuShapeOval</symbol>, +"ellipse" converts to +<symbol>XmuShapeEllipse</symbol>, +and "roundedRectangle" converts to +<symbol>XmuShapeRoundedRectangle</symbol>. +The case of the string does not matter. To use this converter, +include the following in your widget's ClassInitialize procedure: + + <programlisting> +XtSetTypeConverter(XtRString, XtRShapeStyle, XmuCvtStringToShapeStyle, + NULL, 0, XtCacheNone, NULL); + </programlisting> + </para> + + <para id="XmuReshapeWidget"> + <indexterm zone="XmuReshapeWidget"> + <primary><function>XmuReshapeWidget</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Boolean <function>XmuReshapeWidget</function></funcdef> + <paramdef>Widget <parameter>w</parameter></paramdef> + <paramdef>int <parameter>shape_style</parameter></paramdef> + <paramdef>int <parameter>corner_width</parameter></paramdef> + <paramdef>int <parameter>corner_height</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>w</parameter></term> + <listitem><para> +specifies the widget to reshape + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>shape_style</parameter></term> + <listitem><para> +specifies the new shape + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>corner_width</parameter></term> + <listitem><para> +specifies the width of the rounded rectangle corner + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>corner_height</parameter></term> + <listitem><para> +specified the height of the rounded rectangle corner + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm zone="XmuReshapeWidget"> + <primary>Shape extension</primary> + </indexterm> +This function reshapes the specified widget, using the Shape extension, to a +rectangle, oval, ellipse, or rounded rectangle, as specified by shape_style +( +<symbol>XmuShapeRectangle</symbol>, +<symbol>XmuShapeOval</symbol>, +<symbol>XmuShapeEllipse</symbol>, +and +<symbol>XmuShapeRoundedRectangle</symbol>, +respectively). +The shape is bounded by the outside edges of the rectangular extents of the +widget. If the shape is a rounded rectangle, corner_width and corner_height +specify the size of the bounding box that the corners are drawn inside of +(see +<link linkend="XmuFillRoundedRectangle"><function>XmuFillRoundedRectangle</function></link>); +otherwise, corner_width and corner_height are ignored. +The origin of the widget within its parent remains unchanged. + </para> + + <para id="XmuCvtStringToWidget"> + <indexterm zone="XmuCvtStringToWidget"> + <primary><function>XmuCvtStringToWidget</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCvtStringToWidget</function></funcdef> + <paramdef>XrmValue *<parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +the sole argument is the parent Widget + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument must be 1 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + </variablelist> + +This function converts a string to an immediate child widget of the parent +widget passed as an argument. Note that this converter only works for +child widgets that have already been created; there is no lazy evaluation. +The string is first compared against the +names of the normal and popup children, and if a match is found the +corresponding child is returned. If no match is found, the string is +compared against the classes of the normal and popup children, and if a +match is found the corresponding child is returned. The case of the string +is significant. To use this converter, include the following in your +widget's ClassInitialize procedure: + + <programlisting> +static XtConvertArgRec parentCvtArg[] = { + {XtBaseOffset, (XtPointer)XtOffset(Widget, core.parent), sizeof(Widget)}, +}; + +XtAddConverter(XtRString, XtRWidget, XmuCvtStringToWidget, + parentCvtArg, XtNumber(parentCvtArg)); + </programlisting> + </para> + + <para id="XmuNewCvtStringToWidget"> + <indexterm zone="XmuNewCvtStringToWidget"> + <primary><function>XmuNewCvtStringToWidget</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Boolean <function>XmuNewCvtStringToWidget</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>args</parameter></paramdef> + <paramdef>Cardinal *<parameter>num_args</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>fromVal</parameter></paramdef> + <paramdef>XrmValuePtr <parameter>toVal</parameter></paramdef> + <paramdef>XtPointer *<parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +the display to use for conversion warnings + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>args</parameter></term> + <listitem><para> +the sole argument is the parent Widget + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_args</parameter></term> + <listitem><para> +this argument must be a pointer to a Cardinal containing the value 1 + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>fromVal</parameter></term> + <listitem><para> +specifies the string to convert + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toVal</parameter></term> + <listitem><para> +returns the converted value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +this argument is ignored + </para></listitem> + </varlistentry> + </variablelist> + +This converter is identical in functionality to +<link linkend="XmuCvtStringToWidget"><function>XmuCvtStringToWidget</function></link>, except +that it is a new-style converter, allowing the specification of a cache type +at the time of registration. +Most widgets will not cache the conversion results, as the application may +dynamically create and destroy widgets, which would cause cached values to +become illegal. To use this converter, include the following in the widget's +class initialize procedure: + + <programlisting> +static XtConvertArgRec parentCvtArg[] = { + {XtWidgetBaseOffset, (XtPointer)XtOffsetOf(WidgetRec, core.parent), + sizeof(Widget)} +}; + +XtSetTypeConverter(XtRString, XtRWidget, XmuNewCvtStringToWidget, + parentCvtArg, XtNumber(parentCvtArg), XtCacheNone, NULL); + </programlisting> + + </para> + + </sect1> + + <sect1 id='character_set_functions'> + <title>Character Set Functions</title> + +<para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/CharSet.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/CharSet.h</filename></primary> +</indexterm> +and link against the libXmu or libXmuu library. +</para> + + <warning><para> +The functions in this section are <emphasis remap='B'>deprecated</emphasis> +because they don't work in most locales now supported by X11; most platforms +provide alternatives in their system libraries. + </para></warning> + + <para id="XmuCopyISOLatin1Lowered"> + <indexterm zone="XmuCopyISOLatin1Lowered"> + <primary><function>XmuCopyISOLatin1Lowered</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCopyISOLatin1Lowered</function></funcdef> + <paramdef>char *<parameter>dst</parameter></paramdef> + <paramdef>const char *<parameter>src</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dst</parameter></term> + <listitem><para> +returns the string copy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>src</parameter></term> + <listitem><para> +specifies the string to copy + </para></listitem> + </varlistentry> + </variablelist> + +This function copies a null terminated string from src to dst (including the +null), changing all Latin-1 uppercase letters to lowercase. The string is +assumed to be encoded using ISO 8859-1. + </para> + + <para> +Note that like <function>strcpy</function> the caller is responsible for +ensuring the size of <parameter>dst</parameter> is at least as large as the +size of <parameter>src</parameter>. + </para> + + <para id="XmuNCopyISOLatin1Lowered"> + <indexterm zone="XmuNCopyISOLatin1Lowered"> + <primary><function>XmuNCopyISOLatin1Lowered</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuNCopyISOLatin1Lowered</function></funcdef> + <paramdef>char *<parameter>dst</parameter></paramdef> + <paramdef>const char *<parameter>src</parameter></paramdef> + <paramdef>int <parameter>size</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dst</parameter></term> + <listitem><para> +returns the string copy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>src</parameter></term> + <listitem><para> +specifies the string to copy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>size</parameter></term> + <listitem><para> +maximum number of characters (including the null terminator) to write to dst + </para></listitem> + </varlistentry> + </variablelist> + +This function copies up to <code><parameter>size</parameter> - 1</code> +characters of a null terminated string from <parameter>src</parameter> +to <parameter>dst</parameter>, and terminates it with a null, +changing all Latin-1 uppercase letters to lowercase. The string is +assumed to be encoded using ISO 8859-1. + </para> + + <para id="XmuCopyISOLatin1Uppered"> + <indexterm zone="XmuCopyISOLatin1Uppered"> + <primary><function>XmuCopyISOLatin1Uppered</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCopyISOLatin1Uppered</function></funcdef> + <paramdef>char *<parameter>dst</parameter></paramdef> + <paramdef>const char *<parameter>src</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dst</parameter></term> + <listitem><para> +returns the string copy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>src</parameter></term> + <listitem><para> +specifies the string to copy + </para></listitem> + </varlistentry> + </variablelist> + +This function copies a null terminated string from src to dst (including the +null), changing all Latin-1 lowercase letters to uppercase. The string is +assumed to be encoded using ISO 8859-1. + </para> + + <para> +Note that like <function>strcpy</function> the caller is responsible for +ensuring the size of <parameter>dst</parameter> is at least as large as the +size of <parameter>src</parameter>. + </para> + + <para id="XmuNCopyISOLatin1Uppered"> + <indexterm zone="XmuNCopyISOLatin1Uppered"> + <primary><function>XmuNCopyISOLatin1Uppered</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuNCopyISOLatin1Uppered</function></funcdef> + <paramdef>char *<parameter>dst</parameter></paramdef> + <paramdef>const char *<parameter>src</parameter></paramdef> + <paramdef>int <parameter>size</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dst</parameter></term> + <listitem><para> +returns the string copy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>src</parameter></term> + <listitem><para> +specifies the string to copy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>size</parameter></term> + <listitem><para> +maximum number of characters (including the null terminator) to write to dst + </para></listitem> + </varlistentry> + </variablelist> + +This function copies up to <code><parameter>size</parameter> - 1</code> +characters of a null terminated string from <parameter>src</parameter> +to <parameter>dst</parameter>, and terminates it with a null, +changing all Latin-1 lowercase letters to uppercase. The string is +assumed to be encoded using ISO 8859-1. + </para> + + <para id="XmuCompareISOLatin1"> + <indexterm zone="XmuCompareISOLatin1"> + <primary><function>XmuCompareISOLatin1</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuCompareISOLatin1</function></funcdef> + <paramdef>const char *<parameter>first</parameter></paramdef> + <paramdef>const char *<parameter>second</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>first</parameter></term> + <listitem><para> + specifies a string to compare + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>second</parameter></term> + <listitem><para> +specifies a string to compare + </para></listitem> + </varlistentry> + </variablelist> + +This function compares two null terminated Latin-1 strings, ignoring case +differences, and returns an integer greater than, equal to, or less than 0, +according to whether first is lexicographically greater than, equal to, or +less than second. The two strings are assumed to be encoded using ISO +8859-1. + </para> + </sect1> + + <sect1 id='keyboard_event'> + <title>Keyboard Event Translation Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/Lookup.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Lookup.h</filename></primary> +</indexterm>. +and link against the libXmu library. + </para> + + <warning><para> +The functions in this section are <emphasis remap='B'>deprecated</emphasis> because they don't work +in most locales now supported by X11; the function +<function>XmbLookupString</function> +provides a better alternative. + </para></warning> + + <para id="XmuLookupLatin1"> + <indexterm zone="XmuLookupLatin1"> + <primary><function>XmuLookupLatin1</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupLatin1</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is identical to +<function>XLookupString</function>, +and exists only for naming symmetry with other functions. + </para> + + <para id="XmuLookupLatin2"> + <indexterm zone="XmuLookupLatin2"> + <primary><function>XmuLookupLatin2</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupLatin2</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to an Latin-2 (ISO 8859-2) string, or to an ASCII control string. + </para> + + <para id="XmuLookupLatin3"> + <indexterm zone="XmuLookupLatin3"> + <primary><function>XmuLookupLatin3</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupLatin3</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to an Latin-3 (ISO 8859-3) string, or to an ASCII control string. + </para> + + <para id="XmuLookupLatin4"> + <indexterm zone="XmuLookupLatin4"> + <primary><function>XmuLookupLatin4</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupLatin4</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to an Latin-4 (ISO 8859-4) string, or to an ASCII control string. + </para> + + <para id="XmuLookupKana"> + <indexterm zone="XmuLookupKana"> + <primary><function>XmuLookupKana</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupKana</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to a string in an encoding consisting of Latin-1 (ISO 8859-1) and ASCII +control in the Graphics Left half (values 0 to 127), and Katakana in the +Graphics Right half (values 128 to 255), using the values from JIS +X201-1976. + </para> + + <para id="XmuLookupJISX0201"> + <indexterm zone="XmuLookupJISX0201"> + <primary><function>XmuLookupJISX0201</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupJISX0201</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to a string in the JIS X0201-1976 encoding, including ASCII control. + </para> + + <para id="XmuLookupArabic"> + <indexterm zone="XmuLookupArabic"> + <primary><function>XmuLookupArabic</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupArabic</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to a Latin/Arabic (ISO 8859-6) string, or to an ASCII control string. + </para> + + <para id="XmuLookupCyrillic"> + <indexterm zone="XmuLookupCyrillic"> + <primary><function>XmuLookupCyrillic</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupCyrillic</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to a Latin/Cyrillic (ISO 8859-5) string, or to an ASCII control string. + </para> + + <para id="XmuLookupGreek"> + <indexterm zone="XmuLookupGreek"> + <primary><function>XmuLookupGreek</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupGreek</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to a Latin/Greek (ISO 8859-7) string, or to an ASCII control string. + </para> + + <para id="XmuLookupHebrew"> + <indexterm zone="XmuLookupHebrew"> + <primary><function>XmuLookupHebrew</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupHebrew</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event +to a Latin/Hebrew (ISO 8859-8) string, or to an ASCII control string. + </para> + + <para id="XmuLookupAPL"> + <indexterm zone="XmuLookupAPL"> + <primary><function>XmuLookupAPL</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuLookupAPL</function></funcdef> + <paramdef>XKeyEvent *<parameter>event</parameter></paramdef> + <paramdef>unsigned char *<parameter>buffer</parameter></paramdef> + <paramdef>int <parameter>nbytes</parameter></paramdef> + <paramdef>KeySym *<parameter>keysym</parameter></paramdef> + <paramdef>XComposeStatus *<parameter>status</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>event</parameter></term> + <listitem><para> +specifies the key event + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>buffer</parameter></term> + <listitem><para> +returns the translated characters + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>nbytes</parameter></term> + <listitem><para> +specifies the length of the buffer + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>keysym</parameter></term> + <listitem><para> +returns the computed KeySym, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>status</parameter></term> + <listitem><para> +specifies or returns the compose state + </para></listitem> + </varlistentry> + </variablelist> + +This function is similar to +<function>XLookupString</function>, +except that it maps a key event to an APL string. + </para> + + </sect1> + + <sect1 id='compound_text_functions'> + <title>Compound Text Functions</title> + + <para> +The functions defined in this section are for parsing Compound Text strings, +decomposing them into individual segments. Definitions needed to use these +routines are in the include file +<<filename class='headerfile'>X11/Xmu/Xct.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Xct.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <warning><para> +The functions in this section are <emphasis remap='B'>deprecated</emphasis> because they shift the +burden for recently introduced locale encodings to the application. The +use of the +<symbol>UTF8_STRING</symbol> +text encoding provides a better alternative. + </para></warning> + + <para> +A Compound Text string is represented as the following type: + + <synopsis> + typedef unsigned char *XctString; + </synopsis> + </para> + + <para id="XctCreate"> + <indexterm zone="XctCreate"> + <primary><function>XctCreate</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XctData <function>XctCreate</function></funcdef> + <paramdef>const XctString <parameter>string</parameter></paramdef> + <paramdef>int <parameter>length</parameter></paramdef> + <paramdef>XctFlags <parameter>flags</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>string</parameter></term> + <listitem><para> +the Compound Text string + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>length</parameter></term> + <listitem><para> +the number of bytes in string + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>flags</parameter></term> + <listitem><para> +parsing control flags + </para></listitem> + </varlistentry> + </variablelist> + +This function creates an +<type>XctData</type> +structure for parsing a Compound Text +string. The string need not be null terminated. The following flags are +defined to control parsing of the string: + + <variablelist> + <varlistentry> + <term><symbol>XctSingleSetSegments</symbol></term> + <listitem><para> +This means that returned segments should contain +characters from only one set (C0, C1, GL, GR). When this is requested, +<symbol>XctSegment</symbol> +is never returned by +<function>XctNextItem</function>, +instead +<symbol>XctC0Segment</symbol>, +<symbol>XctC1Segment</symbol>, +<symbol>XctGlSegment</symbol>, +and +<symbol>XctGRSegment</symbol> +are returned. C0 and C1 +segments are always returned as singleton characters. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctProvideExtensions</symbol></term> + <listitem><para> +This means that if the Compound Text string is from a +higher version than this code is implemented to, then syntactically correct +but unknown control sequences should be returned as +<symbol>XctExtension</symbol> +items by +<function>XctNextItem</function>. +If this flag is not set, and the Compound Text string version +indicates that extensions cannot be ignored, then each unknown control +sequence will be reported as an +<symbol>XctError</symbol>. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctAcceptC0Extensions</symbol></term> + <listitem><para> +This means that if the Compound Text string is from +a higher version than this code is implemented to, then unknown C0 +characters should be treated as if they were legal, and returned as C0 +characters (regardless of how +<symbol>XctProvideExtensions</symbol> +is set) by +<function>XctNextItem</function>. +If this flag is not set, then all unknown C0 characters are treated +according to +<symbol>XctProvideExtensions</symbol>. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctAcceptC1Extensions</symbol></term> + <listitem><para> +This means that if the Compound Text string is from +a higher version than this code is implemented to, then unknown C1 +characters should be treated as if they were legal, and returned as C1 +characters (regardless of how +<symbol>XctProvideExtensions</symbol> +is set) by +<function>XctNextItem</function>. +If this flag is not set, then all unknown C1 characters are treated +according to +<symbol>XctProvideExtensions</symbol>. + </para></listitem> + </varlistentry> + <varlistentry> + <term><symbol>XctHideDirection</symbol></term> + <listitem><para> +This means that horizontal direction changes should be +reported as +<symbol>XctHorizontal</symbol> +items by +<function>XctNextItem</function>. If this flag is not set, +then direction changes are not returned as items, but the current direction +is still maintained and reported for other items. The current direction is +given as an enumeration, with the values +<symbol>XctUnspecified</symbol>, +<symbol>XctLeftToRight</symbol>, +and +<symbol>XctRightToLeft</symbol>. + </para></listitem> + </varlistentry> + <varlistentry> + <term><symbol>XctFreeString</symbol></term> + <listitem><para> +This means that +<function>XctFree</function> +should free the Compound Text string that is passed to +<function>XctCreate</function>. +If this flag is not set, the string is not freed. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctShiftMultiGRToGL</symbol></term> + <listitem><para> +This means that +<function>XctNextItem</function> +should translate GR +segments on-the-fly into GL segments for the GR sets: GB2312.1980-1, +JISX0208.1983-1, and KSC5601.1987-1. + </para></listitem> + </varlistentry> + </variablelist> + </para> + + <para id="XctReset"> + <indexterm zone="XctReset"> + <primary><function>XctReset</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XctReset</function></funcdef> + <paramdef>XctData <parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +specifies the Compound Text structure + </para></listitem> + </varlistentry> + </variablelist> + +This function resets the +<type>XctData</type> +structure to reparse the Compound Text string from the beginning. + </para> + + <para id="XctNextItem"> + <indexterm zone="XctNextItem"> + <primary><function>XctNextItem</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XctResult <function>XctNextItem</function></funcdef> + <paramdef>XctData <parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +specifies the Compound Text structure + </para></listitem> + </varlistentry> + </variablelist> + +This function parses the next “item” from the Compound Text string. The +return value indicates what kind of item is returned. The item itself, its +length, and the current contextual state, are reported as components of the +<type>XctData</type> +structure. +<type>XctResult</type> +is an enumeration, with the following values: + + <variablelist> + <varlistentry> + <term><symbol>XctSegment</symbol></term> + <listitem><para> +the item contains some mixture of C0, GL, GR, and C1 characters. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctC0Segment</symbol></term> + <listitem><para> +the item contains only C0 characters. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctGLSegment</symbol></term> + <listitem><para> +the item contains only GL characters. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctC1Segment</symbol></term> + <listitem><para> +the item contains only C1 characters. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctGRSegment</symbol></term> + <listitem><para> +the item contains only GR characters. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctExtendedSegment</symbol></term> + <listitem><para> +the item contains an extended segment. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctExtension</symbol></term> + <listitem><para> +the item is an unknown extension control sequence. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctHorizontal</symbol></term> + <listitem><para> +the item indicates a change in horizontal direction or +depth. The new direction and depth are recorded in the +<type>XctData</type> +structure. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctEndOfText</symbol></term> + <listitem><para> +The end of the Compound Text string has been reached. + </para></listitem> + </varlistentry> + + <varlistentry> + <term><symbol>XctError</symbol></term> + <listitem><para> +the string contains a syntactic or semantic error; no further +parsing should be performed. + </para></listitem> + </varlistentry> + </variablelist> + </para> + + <para id="XctData"> + <indexterm zone="XctData"> + <primary><type>XctData</type></primary> + </indexterm> +The following state values are stored in the +<type>XctData</type> +structure: + <synopsis> + XctString item; /* the action item */ + unsigned item_length; /* length of item in bytes */ + int char_size; /* the number of bytes per character in + * item, with zero meaning variable */ + char *encoding; /* the XLFD encoding name for item */ + XctHDirection horizontal; /* the direction of item */ + unsigned horz_depth; /* the current direction nesting depth */ + char *GL; /* the "{I} F" string for the current GL */ + char *GL_encoding; /* the XLFD encoding name for the current GL */ + int GL_set_size; /* 94 or 96 */ + int GL_char_size; /* the number of bytes per GL character */ + char *GR; /* the "{I} F" string for the current GR */ + char *GR_encoding; /* the XLFD encoding name for the current GR */ + int GR_set_size; /* 94 or 96 */ + int GR_char_size; /* number of bytes per GR character */ + char *GLGR_encoding; /* the XLFD encoding name for the current + * GL+GR, if known */ + </synopsis> + </para> + <para> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XctFree</function></funcdef> + <paramdef>XctData <parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +specifies the Compound Text structure + </para></listitem> + </varlistentry> + </variablelist> + +This function frees all data associated with the +<type>XctData</type> +structure. + </para> + + </sect1> + + <sect1 id='closedisplay_hook_functions'> + <title>CloseDisplay Hook Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/CloseHook.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/CloseHook.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para id="XmuAddCloseDisplayHook"> + <indexterm zone="XmuAddCloseDisplayHook"> + <primary><function>XmuAddCloseDisplayHook</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>CloseHook <function>XmuAddCloseDisplayHook</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>int <parameter>( *func )</parameter> + <funcparams>Display *, XPointer</funcparams></paramdef> + <paramdef>XPointer <parameter>arg</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>func</parameter></term> + <listitem><para> +specifies the function to call at display close + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>arg</parameter></term> + <listitem><para> +specifies arbitrary data to pass to <parameter>func</parameter> + </para></listitem> + </varlistentry> + </variablelist> + +This function adds a callback for the given display. When the display is +closed, the given function will be called with the given display and +argument as: + + <programlisting> + (*func)(dpy, arg) + </programlisting> + </para> + + <para> +The function is declared to return an int even though the value is ignored, +because some compilers used to have problems with functions returning void. + </para> + + <para> +This routine returns <symbol>NULL</symbol> if it was unable to add the +callback, otherwise it +returns an opaque handle that can be used to remove or lookup the callback. + </para> + + <para id="XmuRemoveCloseDisplayHook"> + <indexterm zone="XmuRemoveCloseDisplayHook"> + <primary><function>XmuRemoveCloseDisplayHook</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Bool <function>XmuRemoveCloseDisplayHook</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>CloseHook <parameter>handle</parameter></paramdef> + <paramdef>int <parameter>( *func )</parameter> + <funcparams>Display *, XPointer</funcparams></paramdef> + <paramdef>XPointer <parameter>arg</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>handle</parameter></term> + <listitem><para> +specifies the callback by id, or <symbol>NULL</symbol> + </para></listitem> + </varlistentry> + <varlistentry> + <term><function>func</function></term> + <listitem><para> +specifies the callback by function + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>arg</parameter></term> + <listitem><para> +specifies the function data to match + </para></listitem> + </varlistentry> + </variablelist> + +This function deletes a callback that has been added with +<function>XmuAddCloseDisplayHook</function>. +If handle is not <symbol>NULL</symbol>, it specifies the callback to +remove, and the func and arg parameters are ignored. If handle is <symbol>NULL</symbol>, the +first callback found to match the specified func and arg will be removed. +Returns +<symbol>True</symbol> +if a callback was removed, else returns +<symbol>False</symbol>. + </para> + + <para id="XmuLookupCloseDisplayHook"> + <indexterm zone="XmuLookupCloseDisplayHook"> + <primary><function>XmuLookupCloseDisplayHook</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Bool <function>XmuLookupCloseDisplayHook</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>CloseHook <parameter>handle</parameter></paramdef> + <paramdef>int <parameter>( *func )</parameter> + <funcparams>Display *, XPointer</funcparams></paramdef> + <paramdef>XPointer <parameter>arg</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>handle</parameter></term> + <listitem><para> +specifies the callback by id, or <symbol>NULL</symbol> + </para></listitem> + </varlistentry> + <varlistentry> + <term><function>func</function></term> + <listitem><para> +specifies the callback by function + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>arg</parameter></term> + <listitem><para> +specifies the function data to match + </para></listitem> + </varlistentry> + </variablelist> + +This function determines if a callback is installed. If handle is not +<symbol>NULL</symbol>, +it specifies the callback to look for, and the func and arg parameters are +ignored. If handle is <symbol>NULL</symbol>, the function will look for +any callback for the +specified func and arg. Returns +<symbol>True</symbol> +if a matching callback exists, else returns +<symbol>False</symbol>. + + + </para> + </sect1> + + <sect1 id='display_queue_functions'> + <title>Display Queue Functions</title> + + <para> +To use the functions and types defined in this section, you should include the +header file +<<filename class='headerfile'>X11/Xmu/DisplayQue.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/DisplayQue.h</filename></primary> +</indexterm> +and link against the libXmu library. +<filename class='headerfile'>DisplayQue.h</filename> defines the following +types: + + <indexterm zone="XmuDisplayQueue"> + <primary><type>XmuDisplayQueue</type></primary> + </indexterm> + <synopsis id="XmuDisplayQueue"> +typedef int (*XmuCloseDisplayQueueProc)(XmuDisplayQueue *queue, + XmuDisplayQueueEntry *entry); + +typedef int (*XmuFreeDisplayQueueProc)(XmuDisplayQueue *queue); + +typedef struct _XmuDisplayQueueEntry { + struct _XmuDisplayQueueEntry *prev, *next; + Display *display; + CloseHook closehook; + XPointer data; +} XmuDisplayQueueEntry; + +typedef struct _XmuDisplayQueue { + int nentries; + XmuDisplayQueueEntry *head, *tail; + XmuCloseDisplayQueueProc closefunc; + XmuFreeDisplayQueueProc freefunc; + XPointer data; +} XmuDisplayQueue; + </synopsis> + </para> + + <para id="XmuDQCreate"> + <indexterm zone="XmuDQCreate"> + <primary><function>XmuDQCreate</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XmuDisplayQueue *<function>XmuDQCreate</function></funcdef> + <paramdef>XmuCloseDisplayQueueProc <parameter>closefunc</parameter></paramdef> + <paramdef>XmuFreeDisplayQueueProc <parameter>freefunc</parameter></paramdef> + <paramdef>XPointer <parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>closefunc</parameter></term> + <listitem><para> +specifies the close function + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>freefunc</parameter></term> + <listitem><para> +specifies the free function + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +specifies private data for the functions + </para></listitem> + </varlistentry> + </variablelist> + +This function creates and returns an empty +<type>XmuDisplayQueue</type> +(which is really just a set of displays, but is called a queue for +historical reasons). The queue is initially empty, but displays +can be added using +<function>XmuAddDisplay</function>. +The data value is simply stored in the queue for use by the closefunc +and freefunc callbacks. +Whenever a display in the queue is closed using +<function>XCloseDisplay</function>, +the <parameter>closefunc</parameter> (if non-<symbol>NULL</symbol>) is called with the queue and the display's +<function>XmuDisplayQueueEntry</function> +as follows: + <programlisting> + (*closefunc)(queue, entry) + </programlisting> + </para> + + <para> +The <parameter>freefunc</parameter> (if non-<symbol>NULL</symbol>) is called whenever the last +display in the +queue is closed, as follows: + + <programlisting> + (*freefunc)(queue) + </programlisting> + </para> + + <para> +The application is responsible for actually freeing the queue, by calling +<function>XmuDQDestroy</function>. + </para> + + <para id="XmuDQAddDisplay"> + <indexterm zone="XmuDQAddDisplay"> + <primary><function>XmuDQAddDisplay</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XmuDisplayQueueEntry *<function>XmuDQAddDisplay</function></funcdef> + <paramdef>XmuDisplayQueue *<parameter>q</parameter></paramdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XPointer <parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + + <variablelist> + <varlistentry> + <term><parameter>q</parameter></term> + <listitem><para> +specifies the queue + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the display to add + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +specifies private data for the free function + </para></listitem> + </varlistentry> + </variablelist> + +This function adds the specified display to the queue. If successful, +the queue entry is returned, otherwise <symbol>NULL</symbol> is returned. +The data value is simply stored in the queue entry for use by the +queue's freefunc callback. This function does not attempt to prevent +duplicate entries in the queue; the caller should use +<function>XmuDQLookupDisplay</function> +to determine if a display has already been added to a queue. + </para> + + <para id="XmuDQLookupDisplay"> + <indexterm zone="XmuDQLookupDisplay"> + <primary><function>XmuDQLookupDisplay</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XmuDisplayQueueEntry *<function>XmuDQLookupDisplay</function></funcdef> + <paramdef>XmuDisplayQueue *<parameter>q</parameter></paramdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>q</parameter></term> + <listitem><para> +specifies the queue + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the display to lookup + </para></listitem> + </varlistentry> + </variablelist> + +This function returns the queue entry for the specified display, or +<symbol>NULL</symbol> if +the display is not in the queue. + </para> + + <para id="XmuDQNDisplays"> + <indexterm zone="XmuDQNDisplays"> + <primary><function>XmuDQNDisplays</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef><function>XmuDQNDisplays</function></funcdef> + <paramdef><parameter>q</parameter></paramdef> + </funcprototype> + </funcsynopsis> +This macro returns the number of displays in the specified queue. + </para> + + <para id="XmuDQRemoveDisplay"> + <indexterm zone="XmuDQRemoveDisplay"> + <primary><function>XmuDQRemoveDisplay</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Bool <function>XmuDQRemoveDisplay</function></funcdef> + <paramdef>XmuDisplayQueue *<parameter>q</parameter></paramdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>q</parameter></term> + <listitem><para> +specifies the queue + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the display to remove + </para></listitem> + </varlistentry> + </variablelist> + +This function removes the specified display from the specified queue. +No callbacks are performed. +If the display is not found in the queue, +<symbol>False</symbol> +is returned, otherwise +<symbol>True</symbol> +is returned. + </para> + + <para id="XmuDQDestroy"> + <indexterm zone="XmuDQDestroy"> + <primary><function>XmuDQDestroy</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Bool <function>XmuDQDestroy</function></funcdef> + <paramdef>XmuDisplayQueue *<parameter>q</parameter></paramdef> + <paramdef>Bool <parameter>docallbacks</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>q</parameter></term> + <listitem><para> +specifies the queue to destroy + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>docallbacks</parameter></term> + <listitem><para> +specifies whether close functions should be called + </para></listitem> + </varlistentry> + </variablelist> + +This function releases all memory associated with the specified queue. +If docallbacks is +<symbol>True</symbol>, +then the queue's closefunc callback (if non-<symbol>NULL</symbol>) is first called +for each display in the queue, even though +<function>XCloseDisplay</function> +is not called on the display. + </para> + + </sect1> + + <sect1 id='toolkit_convenience_functions'> + <title>Toolkit Convenience Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/Initer.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Initer.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para id="XmuAddInitializer"> + <indexterm zone="XmuAddInitializer"> + <primary><function>XmuAddInitializer</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuAddInitializer</function></funcdef> + <paramdef>void <parameter>( *func )</parameter> + <funcparams>XtAppContext, XPointer</funcparams></paramdef> + <paramdef>XPointer <parameter>data</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>func</parameter></term> + <listitem><para> +specifies the procedure to register + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>data</parameter></term> + <listitem><para> +specifies private data for the procedure + </para></listitem> + </varlistentry> + </variablelist> + +This function registers a procedure, to be invoked the first time +<function>XmuCallInitializers</function> +is called on a given application context. The procedure +is called with the application context and the specified data: + + <programlisting> + (*func)(app_con, data) + </programlisting> + </para> + + <para id="XmuCallInitializers"> + <indexterm zone="XmuCallInitializers"> + <primary><function>XmuCallInitializers</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuCallInitializers</function></funcdef> + <paramdef>XtAppContext <parameter>app_con</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>app_con</parameter></term> + <listitem><para> +specifies the application context to initialize + </para></listitem> + </varlistentry> + </variablelist> + +This function calls each of the procedures that have been registered with +<function>XmuAddInitializer</function>, +if this is the first time the application context has been passed to +<function>XmuCallInitializers</function>. +Otherwise, this function does nothing. + </para> + + </sect1> + + <sect1 id='standard_colormap_functions'> + <title>Standard Colormap Functions</title> + + <para> +To use the functions defined in this section, you should include the header +file +<<filename class='headerfile'>X11/Xmu/StdCmap.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/StdCmap.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para id="XmuAllStandardColormaps"> + <indexterm zone="XmuAllStandardColormaps"> + <primary><function>XmuAllStandardColormaps</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Status <function>XmuAllStandardColormaps</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + </variablelist> + + <indexterm> + <primary>colormaps</primary><secondary>standard</secondary> + </indexterm> +To create all of the appropriate standard colormaps for every visual of +every screen on a given display, use +<function>XmuAllStandardColormaps</function>. + </para> + + <para> +This function defines and retains as permanent resources all standard +colormaps which are meaningful for the visuals of each screen of the +display. It returns 0 on failure, non-zero on success. If the property of +any standard colormap is already defined, this function will redefine it. + </para> + + <para> +This function is intended to be used by window managers or a special client +at the start of a session. + </para> + + <para> +The standard colormaps of a screen are defined by properties associated with +the screen's root window. The property names of standard colormaps are +predefined, and each property name except +<property>RGB_DEFAULT_MAP</property> may describe at +most one colormap. + </para> + + <para> +The standard colormaps are: <property>RGB_BEST_MAP</property>, +<property>RGB_RED_MAP</property>, <property>RGB_GREEN_MAP</property>, +<property>RGB_BLUE_MAP</property>, <property>RGB_DEFAULT_MAP</property>, + and <property>RGB_GRAY_MAP</property>. Therefore a screen may +have at most 6 standard colormap properties defined. + </para> + + <para> +A standard colormap is associated with a particular visual of the screen. A +screen may have multiple visuals defined, including visuals of the same +class at different depths. Note that a visual id might be repeated for more +than one depth, so the visual id and the depth of a visual identify the +visual. The characteristics of the visual will determine which standard +colormaps are meaningful under that visual, and will determine how the +standard colormap is defined. Because a standard colormap is associated +with a specific visual, there must be a method of determining which visuals +take precedence in defining standard colormaps. + </para> + + <para> +The method used here is: for the visual of greatest depth, define all +standard colormaps meaningful to that visual class, according to this order +of (descending) precedence: +<symbol>DirectColor</symbol>; +<symbol>PseudoColor</symbol>; +<symbol>TrueColor</symbol> +and +<symbol>GrayScale</symbol>; +and finally +<symbol>StaticColor</symbol> +and +<symbol>StaticGray</symbol>. + </para> + +<para>This function allows success, on a per screen basis. For example, if a map +on screen 1 fails, the maps on screen 0, created earlier, will remain. +However, none on screen 1 will remain. If a map on screen 0 fails, none +will remain. + </para> + + <para> +See +<link linkend="XmuVisualStandardColormaps"><function>XmuVisualStandardColormaps</function></link> +for which standard colormaps are meaningful under these classes of visuals. + </para> + + <para id="XmuVisualStandardColormaps"> + <indexterm zone="XmuVisualStandardColormaps"> + <primary><function>XmuVisualStandardColormaps</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Status <function>XmuVisualStandardColormaps</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>int <parameter>screen</parameter></paramdef> + <paramdef>VisualID <parameter>visualid</parameter></paramdef> + <paramdef>unsigned int <parameter>depth</parameter></paramdef> + <paramdef>Bool <parameter>replace</parameter></paramdef> + <paramdef>Bool <parameter>retain</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen of the display + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>visualid</parameter></term> + <listitem><para> +specifies the visual type + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>depth</parameter></term> + <listitem><para> +specifies the visual depth + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>replace</parameter></term> + <listitem><para> +specifies whether or not to replace + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>retain</parameter></term> + <listitem><para> +specifies whether or not to retain + </para></listitem> + </varlistentry> + </variablelist> + +To create all of the appropriate standard colormaps for a given visual on a +given screen, use +<function>XmuVisualStandardColormaps</function>. + </para> + + <para> +This function defines all appropriate standard colormap properties for the +given visual. If replace is +<symbol>True</symbol>, +any previous definition will be removed. +If retain is +<symbol>True</symbol>, +new properties will be retained for the duration of the +server session. This function returns 0 on failure, non-zero on success. +On failure, no new properties will be defined, but old ones may have been +removed if replace was <symbol>True</symbol>. + </para> + + <para> +Not all standard colormaps are meaningful to all visual classes. This +routine will check and define the following properties for the following +classes, provided that the size of the colormap is not too small. For +<symbol>DirectColor</symbol> +and +<symbol>PseudoColor</symbol>: +<property>RGB_DEFAULT_MAP</property>, <property>RGB_BEST_MAP</property>, +<property>RGB_RED_MAP</property>, <property>RGB_GREEN_MAP</property>, +<property>RGB_BLUE_MAP</property>, and <property>RGB_GRAY_MAP</property>. +For +<symbol>TrueColor</symbol> +and +<symbol>StaticColor</symbol>: +<property>RGB_BEST_MAP</property>. For +<symbol>GrayScale</symbol> +and +<symbol>StaticGray</symbol>: +<property>RGB_GRAY_MAP</property>. + </para> + + <para id="XmuLookupStandardColormap"> + <indexterm zone="XmuLookupStandardColormap"> + <primary><function>XmuLookupStandardColormap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Status <function>XmuLookupStandardColormap</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>int <parameter>screen</parameter></paramdef> + <paramdef>VisualID <parameter>visualid</parameter></paramdef> + <paramdef>unsigned int <parameter>depth</parameter></paramdef> + <paramdef>Atom <parameter>property</parameter></paramdef> + <paramdef>Bool <parameter>replace</parameter></paramdef> + <paramdef>Bool <parameter>retain</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen of the display + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>visualid</parameter></term> + <listitem><para> +specifies the visual type + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>depth</parameter></term> + <listitem><para> +specifies the visual depth + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>property</parameter></term> + <listitem><para> +specifies the standard colormap property + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>replace</parameter></term> + <listitem><para> +specifies whether or not to replace + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>retain</parameter></term> + <listitem><para> +specifies whether or not to retain + </para></listitem> + </varlistentry> + </variablelist> + +To create a standard colormap if one does not currently exist, or replace +the currently existing standard colormap, use +<function>XmuLookupStandardColormap</function>. + </para> + + <para> +Given a screen, a visual, and a property, this function will determine the +best allocation for the property under the specified visual, and determine +the whether to create a new colormap or to use the default colormap of the +screen. + </para> + + <para> +If replace is True, any previous definition of the property will be +replaced. If retain is True, the property and the colormap will be made +permanent for the duration of the server session. However, pre-existing +property definitions which are not replaced cannot be made permanent by a +call to this function; a request to retain resources pertains to newly +created resources. + </para> + + <para> +This function returns 0 on failure, non-zero on success. A request to +create a standard colormap upon a visual which cannot support such a map is +considered a failure. An example of this would be requesting any standard +colormap property on a monochrome visual, or, requesting an +<property>RGB_BEST_MAP</property> on +a display whose colormap size is 16. + </para> + + <para id="XmuGetColormapAllocation"> + <indexterm zone="XmuGetColormapAllocation"> + <primary><function>XmuGetColormapAllocation</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Status <function>XmuGetColormapAllocation</function></funcdef> + <paramdef>XVisualInfo *<parameter>vinfo</parameter></paramdef> + <paramdef>Atom <parameter>property</parameter></paramdef> + <paramdef>unsigned long *<parameter>red_max</parameter></paramdef> + <paramdef>unsigned long *<parameter>green_max</parameter></paramdef> + <paramdef>unsigned long *<parameter>blue_max</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>vinfo</parameter></term> + <listitem><para> +specifies visual information for a chosen visual + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>property</parameter></term> + <listitem><para> +specifies one of the standard colormap property names + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>red_max</parameter></term> + <listitem><para> +returns maximum red value</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>green_max</parameter></term> + <listitem><para> +returns maximum green value + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>blue_max</parameter></term> + <listitem><para> +returns maximum blue value + </para></listitem> + </varlistentry> + </variablelist> + +To determine the best allocation of reds, greens, and blues in a standard +colormap, use +<function>XmuGetColormapAllocation</function>. + </para> + + <para> +<function>XmuGetColormapAllocation</function> +returns 0 on failure, non-zero on success. It is +assumed that the visual is appropriate for the colormap property. + </para> + + <para id="XmuStandardColormap"> + <indexterm zone="XmuStandardColormap"> + <primary><function>XmuStandardColormap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XStandardColormap *<function>XmuStandardColormap</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>int <parameter>screen</parameter></paramdef> + <paramdef>VisualID <parameter>visualid</parameter></paramdef> + <paramdef>unsigned int <parameter>depth</parameter></paramdef> + <paramdef>Atom <parameter>property</parameter></paramdef> + <paramdef>Colormap <parameter>cmap</parameter></paramdef> + <paramdef>unsigned long <parameter>red_max</parameter></paramdef> + <paramdef>unsigned long <parameter>green_max</parameter></paramdef> + <paramdef>unsigned long <parameter>blue_max</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen of the display + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>visualid</parameter></term> + <listitem><para> +specifies the visual type + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>depth</parameter></term> + <listitem><para> +specifies the visual depth + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>property</parameter></term> + <listitem><para> +specifies the standard colormap property + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>cmap</parameter></term> + <listitem><para> +specifies the colormap ID, or None + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>red_max</parameter></term> + <listitem><para> +specifies the red allocation + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>green_max</parameter></term> + <listitem><para> +specifies the green allocation + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>blue_max</parameter></term> + <listitem><para> +specifies the blue allocation + </para></listitem> + </varlistentry> + </variablelist> + +To create any one standard colormap, use +<function>XmuStandardColormap</function>. + </para> + + <para> +This function creates a standard colormap for the given screen, visualid, +and visual depth, with the given red, green, and blue maximum values, with +the given standard property name. Upon success, it returns a pointer to an +<function>XStandardColormap</function> +structure which describes the newly created colormap. +Upon failure, it returns <symbol>NULL</symbol>. +If cmap is the default colormap of the screen, the standard colormap +will be defined on the default colormap; otherwise a new colormap is created. + </para> + + <para> +Resources created by this function are not made permanent; that is the +caller's responsibility. + </para> + + <para id="XmuCreateColormap"> + <indexterm zone="XmuCreateColormap"> + <primary><function>XmuCreateColormap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>Status <function>XmuCreateColormap</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>XStandardColormap *<parameter>colormap</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection under which the map is created + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>colormap</parameter></term> + <listitem><para> +specifies the map to be created</para></listitem> + </varlistentry> + </variablelist> + +To create any one colormap which is described by an +<structname>XStandardColormap</structname> +structure, use +<function>XmuCreateColormap</function>. + </para> + + <para> +This function returns 0 on failure, and non-zero on success. The base_pixel +of the colormap is set on success. Resources created by this function are +not made permanent. No argument error checking is provided; use at your own +risk. + </para> + + <para> +All colormaps are created with read-only allocations, with the exception of +read-only allocations of colors which fail +to return the expected pixel value, and these are individually defined as +read/write allocations. This is done so that all the cells defined in the +colormap are contiguous, for use in image processing. This typically +happens with White and Black in the default map. + </para> + + <para> +Colormaps of static visuals are considered to be successfully created if the +map of the static visual matches the definition given in the standard +colormap structure. + </para> + + <para id="XmuDeleteStandardColormap"> + <indexterm zone="XmuDeleteStandardColormap"> + <primary><function>XmuDeleteStandardColormap</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuDeleteStandardColormap</function></funcdef> + <paramdef>Display *<parameter>dpy</parameter></paramdef> + <paramdef>Screen *<parameter>screen</parameter></paramdef> + <paramdef>Atom <parameter>property</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>dpy</parameter></term> + <listitem><para> +specifies the connection to the X server + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>screen</parameter></term> + <listitem><para> +specifies the screen of the display + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>property</parameter></term> + <listitem><para> +specifies the standard colormap property + </para></listitem> + </varlistentry> + </variablelist> + +To remove any standard colormap property, use +<function>XmuDeleteStandardColormap</function>. +This function will remove the specified property from the specified screen, +releasing any resources used by the colormap(s) of the property, if +possible. + </para> + + </sect1> + + <sect1 id='widget_description_functions'> + <title>Widget Description Functions</title> + + <para> +The functions defined in this section are for building a description of +the structure of and resources associated with a hierarchy of widget classes. +This package is typically used by applications that wish to manipulate the +widget set itself. + </para> + + <para> +The definitions needed to use these interfaces are in the header file +<<filename class='headerfile'>X11/Xmu/WidgetNode.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/WidgetNode.h</filename></primary> +</indexterm>. +To call these functions, you need to link against the libXmu library. +The following function must be called before any of the others described +below: + + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuWnInitializeNodes</function></funcdef> + <paramdef>XmuWidgetNode *<parameter>node_array</parameter></paramdef> + <paramdef>int <parameter>num_nodes</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>node_array</parameter></term> + <listitem><para> +specifies a list of widget classes, in alphabetical order + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_nodes</parameter></term> + <listitem><para> +specifies the number of widget classes in the node array + </para></listitem> + </varlistentry> + </variablelist> + </para> + + <para> +To determine the resources provided by a widget class or classes, use + + <funcsynopsis> + <funcprototype> + <funcdef>void <function>XmuWnFetchResources</function></funcdef> + <paramdef>XmuWidgetNode *<parameter>node</parameter></paramdef> + <paramdef>Widget <parameter>toplevel</parameter></paramdef> + <paramdef>XmuWidgetNode *<parameter>top_node</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>node</parameter></term> + <listitem><para> +specifies the widget class for which resources should be obtained. + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>toplevel</parameter></term> + <listitem><para> +specifies the widget that should be used for creating an instance of +<parameter>node</parameter> +from which resources are extracted. This is typically the value returned +by <function>XtAppInitialize</function>. + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>top_node</parameter></term> + <listitem><para> +specifies the ancestor of <parameter>node</parameter> that should be +treated as the root +of the widget inheritance tree (used in determining which ancestor contributed +which resources). + </para></listitem> + </varlistentry> + </variablelist> + </para> + + <para> +Each widget class inherits the resources of its parent. To count the number +of resources contributed by a particular widget class, use: + + <funcsynopsis> + <funcprototype> + <funcdef>int <function>XmuWnCountOwnedResources</function></funcdef> + <paramdef>XmuWidgetNode *<parameter>node</parameter></paramdef> + <paramdef>XmuWidgetNode *<parameter>owner_node</parameter></paramdef> + <paramdef>Bool <parameter>constraints</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>node</parameter></term> + <listitem><para> +specifies the widget class whose resources are being examined. + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>owner_node</parameter></term> + <listitem><para> +specifies the widget class of the ancestor of <parameter>node</parameter> +whose contributions +are being counted. + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>constraints</parameter></term> + <listitem><para> +specifies whether or not to count constraint resources or normal resources. + </para></listitem> + </varlistentry> + </variablelist> + +This routine returns the number of resources contributed (or +“owned”) by +the specified widget class. + </para> + + <para id="XmuWnNameToNode"> + <indexterm zone="XmuWnNameToNode"> + <primary><function>XmuWnNameToNode</function></primary> + </indexterm> + <funcsynopsis> + <funcprototype> + <funcdef>XmuWidgetNode *<function>XmuWnNameToNode</function></funcdef> + <paramdef>XmuWidgetNode *<parameter>node_list</parameter></paramdef> + <paramdef>int <parameter>num_nodes</parameter></paramdef> + <paramdef>char *<parameter>name</parameter></paramdef> + </funcprototype> + </funcsynopsis> + <variablelist> + <varlistentry> + <term><parameter>node_list</parameter></term> + <listitem><para> +specifies a list of widget nodes + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>num_nodes</parameter></term> + <listitem><para> +specifies the number of nodes in the list + </para></listitem> + </varlistentry> + <varlistentry> + <term><parameter>name</parameter></term> + <listitem><para> +specifies the name of the widget class in the node list to search for + </para></listitem> + </varlistentry> + </variablelist> + +This function returns the WidgetNode in the list that matches the given +widget name or widget class name. If no match is found, it returns +<symbol>NULL</symbol>. + </para> + + </sect1> + + <sect1 id='participation_in_the_editres_protocol'> + <title>Participation in the Editres Protocol</title> + + <para> + <indexterm> + <primary>editres</primary> + </indexterm> +To participate in the editres protocol, applications which are not based +on the Athena widget set should include the header file +<<filename class='headerfile'>X11/Xmu/Editres.h</filename>> +<indexterm> +<primary><filename class='headerfile'>X11/Xmu/Editres.h</filename></primary> +</indexterm> +and link against the libXmu library. + </para> + + <para> +To participate in the editres protocol, Xt applications which do not rely +on the Athena widget set should register the editres protocol handler on +each shell widget in the application, specifying an event mask of 0, +nonmaskable events, and client data as <symbol>NULL</symbol>: + + <programlisting> +XtAddEventHandler(shell, (EventMask) 0, True, _XEditResCheckMessages, NULL); + </programlisting> + </para> + </sect1> + + <index /> +</article> |