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-.\" $Xorg: appC,v 1.3 2000/08/17 19:42:48 cpqbld Exp $
-.\" Copyright \(co 1985, 1986, 1987, 1988, 1991, 1994
-.\" X Consortium
-.\" 
-.\" 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:
-.\" 
-.\" The above copyright notice and this permission notice shall be included
-.\" in all copies or substantial portions of the Software.
-.\" 
-.\" 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.
-.\" 
-.\" 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.
-.\" 
-.\" Copyright \(co 1985, 1986, 1987, 1988, 1991, 1994
-.\" Digital Equipment Corporation, Maynard, Massachusetts.
-.\" 
-.\" Permission to use, copy, modify and distribute this documentation for any
-.\" purpose and without fee is hereby granted, provided that the above copyright
-.\" notice appears in all copies and that both that copyright notice and this
-.\" permission notice appear in supporting documentation, and that the name of
-.\" Digital not be used in in advertising or publicity pertaining
-.\" to distribution of the software without specific, written prior permission.
-.\" Digital makes no representations about the suitability of the
-.\" software described herein for any purpose.
-.\" It is provided ``as is'' without express or implied warranty.
-.\"
-.bp
-\&
-.sp 1
-.ce 3
-\s+1\fBAppendix C\fP\s-1
-
-\s+1\fBCompatibility Functions\fP\s-1
-.sp 2
-.LP
-.XS
-\fBAppendix C \(em Compatibility Functions\fP
-.XE
-.FS
-This appendix is part of the formal Intrinsics Specification.
-.FE
-.LP
-In prototype versions of the \*(tk
-each widget class
-implemented an Xt<\^\fIWidget\fP\^>Create (for example,
-.PN XtLabelCreate )
-function, in which most of the code was identical from widget to widget.
-In the \*(xI, a single generic
-.PN XtCreateWidget
-performs most of the common work and then calls the initialize procedure
-implemented for the particular widget class.
-.LP
-Each Composite class also implemented the procedures
-Xt<\^\fIWidget\fP\^>Add and an Xt<\^\fIWidget\fP\^>Delete (for example,
-.PN XtButtonBoxAddButton
-and
-.PN XtButtonBoxDeleteButton ).
-In the \*(xI, the Composite generic procedures
-.PN XtManageChildren
-and
-.PN XtUnmanageChildren
-perform error checking and screening out of certain children.
-Then they call the change_managed procedure
-implemented for the widget's Composite class.
-If the widget's parent has not yet been realized,
-the call to the change_managed procedure is delayed until realization time.
-.LP
-Old-style calls can be implemented in the \*(tk by defining
-one-line procedures or macros that invoke a generic routine.  For example,
-you could define the macro
-.PN XtLabelCreate
-as:
-.IP
-.Ds 0
-.TA .5i 3i
-.ta .5i 3i
-#define XtLabelCreate(\fIname\fP, \fIparent\fP, \fIargs\fP, \fInum_args\fP) \\
-        ((LabelWidget) XtCreateWidget(\fIname\fP, \fIlabelWidgetClass\fP,   \
-\fIparent\fP, \fIargs\fP, \fInum_args\fP))
-.De
-.sp
-.LP
-Pop-up shells in some of the prototypes automatically performed an
-.PN XtManageChild
-on their child within their insert_child procedure.
-.IN "insert_child procedure"
-Creators of pop-up children need to call
-.PN XtManageChild
-themselves.
-.sp
-.LP
-.PN XtAppInitialize
-and 
-.PN XtVaAppInitialize 
-have been replaced by 
-.PN XtOpenApplication
-and
-.PN XtVaOpenApplication .
-.LP
-To initialize the \*(xI internals, create an application context,
-open and initialize a display, and create the initial application shell
-instance, an application may use
-.PN XtAppInitialize
-or
-.PN XtVaAppInitialize .
-.LP
-.IN "XtAppInitialize" "" "@DEF@"
-.sM
-.FD 0
-Widget XtAppInitialize(\fIapp_context_return\fP, \fIapplication_class\fP, \
-\fIoptions\fP, \fInum_options\fP,
-.br
-                       \fIargc_in_out\fP, \fIargv_in_out\fP, \
-\fIfallback_resources\fP, \fIargs\fP, \fInum_args\fP)
-.br
-      XtAppContext *\fIapp_context_return\fP;
-.br
-      String \fIapplication_class\fP;
-.br
-      XrmOptionDescList \fIoptions\fP;
-.br
-      Cardinal \fInum_options\fP;
-.br
-      int *\fIargc_in_out\fP;
-.br
-      String *\fIargv_in_out\fP;
-.br
-      String *\fIfallback_resources\fP;
-.br
-      ArgList \fIargs\fP;
-.br
-      Cardinal \fInum_args\fP;
-.FN
-.IP \fIapp_context_return\fP 1.5i
-Returns the application context, if non-NULL.
-.IP \fIapplication_class\fP 1.5i
-Specifies the class name of the application.
-.IP \fIoptions\fP 1.5i
-Specifies the command line options table.
-.IP \fInum_options\fP 1.5i
-Specifies the number of entries in \fIoptions\fP.
-.IP \fIargc_in_out\fP 1.5i
-Specifies a pointer to the number of command line arguments.
-.IP \fIargv_in_out\fP 1.5i
-Specifies a pointer to the command line arguments.
-.IP \fIfallback_resources\fP 1.5i
-Specifies resource values to be used if the application class resource
-file cannot be opened or read, or NULL.
-.IP \fIargs\fP 1.5i
-Specifies the argument list to override any
-other resource specifications for the created shell widget.
-.IP \fInum_args\fP 1.5i
-Specifies the number of entries in the argument list.
-.LP
-.eM
-The
-.PN XtAppInitialize
-function calls
-.PN XtToolkitInitialize
-followed by
-.PN XtCreateApplicationContext ,
-then calls
-.PN XtOpenDisplay
-with \fIdisplay_string\fP NULL and
-\fIapplication_name\fP NULL, and finally calls
-.PN XtAppCreateShell
-with \fIapplication_name\fP NULL, \fIwidget_class\fP
-.PN application\%Shell\%Widget\%Class ,
-and the specified \fIargs\fP and \fInum_args\fP
-and returns the created shell.  The modified \fIargc\fP and \fIargv\fP returned by
-.PN XtDisplayInitialize
-are returned in \fIargc_in_out\fP and \fIargv_in_out\fP.  If
-\fIapp_context_return\fP is not NULL, the created application context is
-also returned.  If the display specified by the command line cannot be
-opened, an error message is issued and
-.PN XtAppInitialize
-terminates the application.  If \fIfallback_resources\fP is non-NULL,
-.PN XtAppSetFallbackResources
-is called with the value prior to calling
-.PN XtOpenDisplay .
-.sp
-.LP
-.IN "XtVaAppInitialize" "" "@DEF@"
-.sM
-.FD 0
-Widget XtVaAppInitialize(\fIapp_context_return\fP, \fIapplication_class\fP, \
-\fIoptions\fP, \fInum_options\fP,
-.br
-                         \fIargc_in_out\fP, \fIargv_in_out\fP, \
-\fIfallback_resources\fP, ...)
-.br
-    XtAppContext *\fIapp_context_return\fP;
-.br
-    String \fIapplication_class\fP;
-.br
-    XrmOptionDescList \fIoptions\fP;
-.br
-    Cardinal \fInum_options\fP;
-.br
-    int *\fIargc_in_out\fP;
-.br
-    String *\fIargv_in_out\fP;
-.br
-    String *\fIfallback_resources\fP;
-.FN
-.IP \fIapp_context_return\fP 1.5i
-Returns the application context, if non-NULL.
-.IP \fIapplication_class\fP 1.5i
-Specifies the class name of the application.
-.IP \fIoptions\fP 1.5i
-Specifies the command line options table.
-.IP \fInum_options\fP 1.5i
-Specifies the number of entries in \fIoptions\fP.
-.IP \fIargc_in_out\fP 1.5i
-Specifies a pointer to the number of command line arguments.
-.IP \fIargv_in_out\fP 1.5i
-Specifies the command line arguments array.
-.IP \fIfallback_resources\fP 1.5i
-Specifies resource values to be used if the application class
-resource file cannot be opened, or NULL.
-.IP ... 1.5i
-Specifies the variable argument list to override any other
-resource specifications for the created shell.
-.LP
-.eM
-The
-.PN XtVaAppInitialize
-procedure is identical in function to
-.PN XtAppInitialize
-with the \fIargs\fP and \fInum_args\fP parameters replaced by a varargs list,
-as described
-in Section 2.5.1.
-.sp
-.LP
-As a convenience to people converting from earlier versions of the toolkit
-without application contexts, the following routines exist:
-.PN XtInitialize ,
-.PN XtMainLoop ,
-.PN XtNextEvent ,
-.PN XtProcessEvent ,
-.PN XtPeekEvent ,
-.PN XtPending ,
-.PN XtAddInput ,
-.PN XtAddTimeOut ,
-.PN XtAddWorkProc ,
-.PN XtCreateApplicationShell ,
-.PN XtAddActions ,
-.PN XtSetSelectionTimeout ,
-and
-.PN XtGetSelectionTimeout .
-.LP
-.IN "XtInitialize" "" "@DEF@"
-.sM
-.FD 0
-Widget XtInitialize(\fIshell_name\fP, \fIapplication_class\fP, \fIoptions\fP, \
-\fInum_options\fP, \fIargc\fP, \fIargv\fP)
-.br
-      String \fIshell_name\fP;
-.br
-      String \fIapplication_class\fP;
-.br
-      XrmOptionDescRec \fIoptions\fP[];
-.br
-      Cardinal \fInum_options\fP;
-.br
-      int *\fIargc\fP;
-.br
-      String \fIargv\fP[];
-.FN
-.IP \fIshell_name\fP 1i
-This parameter is ignored; therefore, you can specify NULL.
-.IP \fIapplication_class\fP 1i
-Specifies the class name of this application.
-.IP \fIoptions\fP 1i
-Specifies how to parse the command line for any application-specific resources.
-The \fIoptions\fP argument is passed as a parameter to 
-.PN XrmParseCommand .
-.IP \fInum_options\fP 1i
-Specifies the number of entries in the options list.
-.IP \fIargc\fP 1i
-Specifies a pointer to the number of command line parameters.
-.IP \fIargv\fP 1i
-Specifies the command line parameters.
-.LP
-.eM
-.PN XtInitialize
-calls
-.PN XtToolkitInitialize
-to initialize the toolkit internals,
-creates a default application context for use by the other convenience
-routines, calls
-.PN XtOpenDisplay
-with \fIdisplay_string\fP NULL and \fIapplication_name\fP NULL, and
-finally calls
-.PN XtAppCreateShell
-with \fIapplication_name\fP NULL and
-returns the created shell.
-The semantics of calling
-.PN XtInitialize
-more than once are undefined.
-This routine has been replaced by
-.PN XtOpenApplication .
-.sp
-.IN "XtMainLoop" "" "@DEF@"
-.sM
-.FD 0
-void XtMainLoop(void)
-.FN
-.LP
-.eM
-.PN XtMainLoop
-first reads the next alternate input, timer, or X event by calling
-.PN XtNextEvent .
-Then it dispatches this to the appropriate registered procedure by calling
-.PN XtDispatchEvent .
-This routine has been replaced by
-.PN XtAppMainLoop .
-.sp
-.IN "XtNextEvent" "" "@DEF@"
-.sM
-.FD 0
-void XtNextEvent(\fIevent_return\fP)
-.br
-      XEvent *\fIevent_return\fP;
-.FN
-.IP \fIevent_return\fP 1i
-Returns the event information to the specified event structure.
-.LP
-.eM
-If no input is on the X input queue for the default application context, 
-.PN XtNextEvent 
-flushes the X output buffer 
-and waits for an event while looking at the alternate input sources 
-and timeout values and calling any callback procedures triggered by them.
-This routine has been replaced by
-.PN XtAppNextEvent .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.IN "XtProcessEvent" "" "@DEF@"
-.sM
-.FD 0
-void XtProcessEvent(\fImask\fP)
-.br
-      XtInputMask \fImask\fP;
-.FN
-.IP \fImask\fP 1i
-Specifies the type of input to process.
-.LP
-.eM
-.PN XtProcessEvent
-processes one X event, timeout, or alternate input source 
-(depending on the value of \fImask\fP), blocking if necessary.
-It has been replaced by
-.PN XtAppProcessEvent .
-.PN XtInitialize
-must be called before using this function.
-.sp
-.IN "XtPeekEvent" "" "@DEF@"
-.sM
-.FD 0
-Boolean XtPeekEvent(\fIevent_return\fP)
-.br
-      XEvent *\fIevent_return\fP;
-.FN
-.IP \fIevent_return\fP 1i
-Returns the event information to the specified event structure.
-.LP
-.eM
-If there is an event in the queue for the default application context, 
-.PN XtPeekEvent
-fills in the event and returns a nonzero value.
-If no X input is on the queue, 
-.PN XtPeekEvent
-flushes the output buffer and blocks until input is available, possibly
-calling some timeout callbacks in the process.
-If the input is an event,
-.PN XtPeekEvent
-fills in the event and returns a nonzero value. 
-Otherwise, the input is for an alternate input source, and
-.PN XtPeekEvent
-returns zero. 
-This routine has been replaced by
-.PN XtAppPeekEvent .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.IN "XtPending" "" "@DEF@"
-.sM
-.FD 0
-Boolean XtPending()
-.FN
-.LP
-.eM
-.PN XtPending
-returns a nonzero value if there are 
-events pending from the X server or alternate input sources in the default
-application context.
-If there are no events pending, 
-it flushes the output buffer and returns a zero value.
-It has been replaced by
-.PN XtAppPending .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.IN "XtAddInput" "" "@DEF@"
-.sM
-.FD 0
-XtInputId XtAddInput(\fIsource\fP, \fIcondition\fP, \fIproc\fP, \
-\fIclient_data\fP)
-.br
-      int \fIsource\fP;
-.br
-      XtPointer \fIcondition\fP;
-.br
-      XtInputCallbackProc \fIproc\fP;
-.br
-      XtPointer \fIclient_data\fP;
-.FN
-.IP \fIsource\fP 1i
-Specifies the source file descriptor on a POSIX-based system 
-or other operating-system-dependent device specification.
-.IP \fIcondition\fP 1i
-Specifies the mask that indicates either a read, write, or exception condition
-or some operating-system-dependent condition.
-.IP \fIproc\fP 1i
-Specifies the procedure called when input is available.
-.IP \fIclient_data\fP 1i
-Specifies the parameter to be passed to \fIproc\fP when input is available.
-.LP
-.eM
-The 
-.PN XtAddInput
-function registers in the default application context a new 
-source of events, 
-which is usually file input but can also be file output.
-(The word \fIfile\fP should be loosely interpreted to mean any sink 
-or source of data.)
-.PN XtAddInput
-also specifies the conditions under which the source can generate events.
-When input is pending on this source in the default application context, 
-the callback procedure is called.
-This routine has been replaced by
-.PN XtAppAddInput .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.IN "XtAddTimeOut" "" "@DEF@"
-.sM
-.FD 0
-XtIntervalId XtAddTimeOut(\fIinterval\fP, \fIproc\fP, \fIclient_data\fP)
-.br
-      unsigned long \fIinterval\fP;
-.br
-      XtTimerCallbackProc \fIproc\fP;
-.br
-      XtPointer \fIclient_data\fP;
-.FN
-.IP \fIinterval\fP 1i
-Specifies the time interval in milliseconds.
-.IP \fIproc\fP 1i
-Specifies the procedure to be called when time expires.
-.IP \fIclient_data\fP 1i
-Specifies the parameter to be passed to \fIproc\fP when it is called.
-.LP
-.eM
-The 
-.PN XtAddTimeOut
-function creates a timeout in the default application context
-and returns an identifier for it.
-The timeout value is set to \fIinterval\fP.
-The callback procedure will be called after
-the time interval elapses, after which the timeout is removed.
-This routine has been replaced by 
-.PN XtAppAddTimeOut .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.IN "XtAddWorkProc" "" "@DEF@"
-.sM
-.FD 0
-XtWorkProcId XtAddWorkProc(\fIproc\fP, \fIclient_data\fP)
-.br
-      XtWorkProc \fIproc\fP;
-.br
-      XtPointer \fIclient_data\fP;
-.FN
-.IP \fIproc\fP 1i
-Procedure to call to do the work.
-.IP \fIclient_data\fP 1i
-Client data to pass to \fIproc\fP when it is called.
-.LP
-.eM
-This routine registers a work procedure in the default application context. It has
-been replaced by
-.PN XtAppAddWorkProc .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.IN "XtCreateApplicationShell" "" "@DEF@"
-.sM
-.FD 0
-Widget XtCreateApplicationShell(\fIname\fP, \fIwidget_class\fP, \fIargs\fP, \
-\fInum_args\fP)
-.br
-      String \fIname\fP;
-.br
-      WidgetClass \fIwidget_class\fP;
-.br
-      ArgList \fIargs\fP;
-.br
-      Cardinal \fInum_args\fP;
-.FN
-.IP \fIname\fP 1i
-This parameter is ignored; therefore, you can specify NULL.
-.IP \fIwidget_class\fP 1i
-Specifies the widget class pointer for the created application shell widget.
-This will usually be 
-.PN topLevelShellWidgetClass 
-or a subclass thereof.
-.IP \fIargs\fP 1i
-Specifies the argument list to override  any other resource specifications.
-.IP \fInum_args\fP 1i
-Specifies the number of entries in \fIargs\fP.
-.LP
-.eM
-The procedure
-.PN XtCreateApplicationShell
-calls
-.PN XtAppCreateShell
-with \fIapplication_name\fP NULL, the application class passed to
-.PN XtInitialize ,
-and the default application context created by
-.PN XtInitialize .
-This routine has been replaced by
-.PN XtAppCreateShell .
-.sp
-.LP
-An old-format resource type converter procedure pointer is of type
-.PN XtConverter .
-.LP
-.IN "XtConverter" "" "@DEF@"
-.sM
-.FD 0
-typedef void (*XtConverter)(XrmValue*, Cardinal*, XrmValue*, XrmValue*);
-.br
-      XrmValue *\fIargs\fP;
-.br
-      Cardinal *\fInum_args\fP;
-.br
-      XrmValue *\fIfrom\fP;
-.br
-      XrmValue *\fIto\fP;
-.FN
-.IP \fIargs\fP 1i
-Specifies a list of additional
-.PN XrmValue
-arguments to the converter if additional context is needed
-to perform the conversion, or NULL.
-.IP \fInum_args\fP 1i
-Specifies the number of entries in \fIargs\fP.
-.IP \fIfrom\fP 1i
-Specifies the value to convert.
-.IP \fIto\fP 1i
-Specifies the descriptor to use to return the converted value.
-.LP
-.eM
-Type converters should perform the following actions:
-.IP \(bu 5
-Check to see that the number of arguments passed is correct.
-.IP \(bu 5
-Attempt the type conversion.
-.IP \(bu 5
-If successful, return the size and pointer to the data in the \fIto\fP argument;
-otherwise, call
-.PN XtWarningMsg
-and return without modifying the \fIto\fP argument.
-.LP
-Most type converters just take the data described by the specified \fIfrom\fP
-argument and return data by writing into the specified \fIto\fP argument.
-A few need other information, which is available in the specified 
-argument list.
-A type converter can invoke another type converter,
-which allows differing sources that may convert into a common intermediate
-result to make maximum use of the type converter cache.
-.LP
-Note that the address returned in \fIto->addr\fP cannot be that of a local variable of 
-the converter because this is not valid after the converter returns.
-It should be a pointer to a static variable.
-.LP
-The procedure type
-.PN XtConverter
-has been replaced by
-.PN XtTypeConverter .
-.sp
-.LP
-The
-.PN XtStringConversionWarning
-.IN "XtStringConversionWarning" "" "@DEF@"
-function is a convenience routine for old-format resource converters
-that convert from strings.
-.LP
-.sM
-.FD 0
-void XtStringConversionWarning(\fIsrc\fP, \fIdst_type\fP)
-.br
-      String \fIsrc\fP, \fIdst_type\fP;
-.FN
-.IP \fIsrc\fP 1i
-Specifies the string that could not be converted.
-.IP \fIdst_type\fP 1i
-Specifies the name of the type to which the string could not be converted.
-.LP
-.eM
-The
-.PN XtStringConversionWarning
-function issues a warning message with name ``conversionError'',
-type ``string'', class ``XtToolkitError, and the default message string
-``Cannot convert "\fIsrc\fP" to type \fIdst_type\fP''.  This routine
-has been superseded by
-.PN XtDisplayStringConversionWarning .
-.sp
-.LP
-To register an old-format converter, use
-.PN XtAddConverter
-.IN "XtAddConverter" "" "@DEF@"
-or
-.PN XtAppAddConverter .
-.IN "XtAppAddConverter" "" "@DEF@"
-.LP
-.sM
-.FD 0
-void XtAddConverter(\fIfrom_type\fP, \fIto_type\fP, \fIconverter\fP, \
-\fIconvert_args\fP, \fInum_args\fP)
-.br
-      String \fIfrom_type\fP;
-.br
-      String \fIto_type\fP;
-.br
-      XtConverter \fIconverter\fP;
-.br
-      XtConvertArgList \fIconvert_args\fP;
-.br
-      Cardinal \fInum_args\fP;
-.FN
-.IP \fIfrom_type\fP 1i
-Specifies the source type.
-.IP \fIto_type\fP 1i
-Specifies the destination type.
-.IP \fIconverter\fP 1i
-Specifies the type converter procedure.
-.IP \fIconvert_args\fP 1i
-Specifies how to compute the additional arguments to the converter, or NULL.
-.IP \fInum_args\fP 1i
-Specifies the number of entries in \fIconvert_args\fP.
-.sp
-.LP
-.eM
-.PN XtAddConverter
-is equivalent in function to
-.PN XtSetTypeConverter
-with \fIcache_type\fP equal to
-.PN XtCacheAll
-for old-format type converters.  It has been superseded by
-.PN XtSetTypeConverter .
-.sp
-.sM
-.FD 0
-void XtAppAddConverter(\fIapp_context\fP, \fIfrom_type\fP, \fIto_type\fP, \
-\fIconverter\fP, \fIconvert_args\fP, \fInum_args\fP)
-.br
-      XtAppContext \fIapp_context\fP;
-.br
-      String \fIfrom_type\fP;
-.br
-      String \fIto_type\fP;
-.br
-      XtConverter \fIconverter\fP;
-.br
-      XtConvertArgList \fIconvert_args\fP;
-.br
-      Cardinal \fInum_args\fP;
-.FN
-.IP \fIapp_context\fP 1i
-Specifies the application context.
-.IP \fIfrom_type\fP 1i
-Specifies the source type.
-.IP \fIto_type\fP 1i
-Specifies the destination type.
-.IP \fIconverter\fP 1i
-Specifies the type converter procedure.
-.IP \fIconvert_args\fP 1i
-Specifies how to compute the additional arguments to the converter, or NULL.
-.IP \fInum_args\fP 1i
-Specifies the number of entries in \fIconvert_args\fP.
-.LP
-.eM
-.PN XtAppAddConverter
-is equivalent in function to
-.PN XtAppSetTypeConverter
-with \fIcache_type\fP equal to
-.PN XtCacheAll
-for old-format type converters.  It has been superseded by
-.PN XtAppSetTypeConverter .
-.sp
-.LP
-To invoke resource conversions, a client may use
-.PN XtConvert
-or, for old-format converters only,
-.PN XtDirectConvert .
-.LP
-.IN "XtConvert" "" "@DEF@"
-.sM
-.FD 0
-void XtConvert(\fIw\fP, \fIfrom_type\fP, \fIfrom\fP, \fIto_type\fP, \
-\fIto_return\fP)
-.br
-      Widget \fIw\fP;
-.br
-      String \fIfrom_type\fP;
-.br
-      XrmValuePtr \fIfrom\fP;
-.br
-      String \fIto_type\fP;
-.br
-      XrmValuePtr \fIto_return\fP;
-.FN
-.IP \fIw\fP 1i
-Specifies the widget to use for additional arguments, if any are
-needed.
-.IP \fIfrom_type\fP 1i
-Specifies the source type.
-.IP \fIfrom\fP 1i
-Specifies the value to be converted.
-.IP \fIto_type\fP 1i
-Specifies the destination type.
-.IP \fIto_return\fP 1i
-Returns the converted value.
-.LP
-.IN "XtDirectConvert" "" "@DEF@"
-.FD 0
-void XtDirectConvert(\fIconverter\fP, \fIargs\fP, \fInum_args\fP, \fIfrom\fP, \
-\fIto_return\fP)
-.br
-      XtConverter \fIconverter\fP;
-.br
-      XrmValuePtr \fIargs\fP;
-.br
-      Cardinal \fInum_args\fP;
-.br
-      XrmValuePtr \fIfrom\fP;
-.br
-      XrmValuePtr \fIto_return\fP;
-.FN
-.IP \fIconverter\fP 1i
-Specifies the conversion procedure to be called.
-.IP \fIargs\fP 1i
-Specifies the argument list that contains the additional arguments
-needed to perform the conversion (often NULL).
-.IP \fInum_args\fP 1i
-Specifies the number of entries in \fIargs\fP.
-.IP \fIfrom\fP 1i
-Specifies the value to be converted.
-.IP \fIto_return\fP 1i
-Returns the converted value.
-.LP
-.eM
-The
-.PN XtConvert
-function looks up the type converter registered to convert \fIfrom_type\fP 
-to \fIto_type\fP, computes any additional arguments needed, and then calls
-.PN XtDirectConvert
-or
-.PN XtCallConverter .
-The
-.PN XtDirectConvert
-function looks in the converter cache to see if this conversion procedure
-has been called with the specified arguments.
-If so, it returns a descriptor for information stored in the cache;
-otherwise, it calls the converter and enters the result in the cache.
-.LP
-Before calling the specified converter,
-.PN XtDirectConvert
-sets the return value size to zero and the return value address to NULL.
-To determine if the conversion was successful,
-the client should check \fIto_return.addr\fP for non-NULL.
-The data returned by
-.PN XtConvert
-must be copied immediately by the caller,
-as it may point to static data in the type converter.
-.LP
-.PN XtConvert
-has been replaced by
-.PN XtConvertAndStore ,
-and
-.PN XtDirectConvert
-has been superseded by
-.PN XtCallConverter .
-.sp
-.LP
-To deallocate a shared GC when it is no longer needed, use
-.PN XtDestroyGC .
-.LP
-.IN "XtDestroyGC" "" "@DEF@"
-.sM
-.FD 0
-void XtDestroyGC(\fIw\fP, \fIgc\fP)
-.br
-      Widget \fIw\fP;
-.br
-      GC \fIgc\fP;
-.FN
-.IP \fIw\fP 1i
-Specifies any object on the display for which the shared GC was
-created.  \*(oI
-.IP \fIgc\fP 1i
-Specifies the shared GC to be deallocated.
-.LP
-.eM
-References to sharable GCs are counted and a free request is generated to the
-server when the last user of a given GC destroys it.
-Note that some earlier versions of
-.PN XtDestroyGC
-had only a \fIgc\fP argument.
-Therefore, this function is not very portable,
-and you are encouraged to use
-.PN XtReleaseGC
-instead.
-.sp
-.LP
-To declare an action table in the default application context
-and register it with the translation manager, use
-.PN XtAddActions .
-.LP
-.IN "XtAddActions" "" "@DEF@"
-.sM
-.FD 0
-void XtAddActions(\fIactions\fP, \fInum_actions\fP)
-.br
-      XtActionList \fIactions\fP;
-.br
-      Cardinal \fInum_actions\fP;
-.FN
-.IP \fIactions\fP 1i
-Specifies the action table to register.
-.IP \fInum_actions\fP 1i
-Specifies the number of entries in \fIactions\fP.
-.LP
-.eM
-If more than one action is registered with the same name, 
-the most recently registered action is used.
-If duplicate actions exist in an action table,
-the first is used.
-The \*(xI register an action table for
-.PN XtMenuPopup
-and
-.PN XtMenuPopdown
-as part of \*(tk initialization.
-This routine has been replaced by
-.PN XtAppAddActions .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.LP
-To set the \*(xI selection timeout in the default application context, use
-.PN XtSetSelectionTimeout .
-.LP
-.IN "XtSetSelectionTimeout" "" "@DEF@"
-.sM
-.FD 0
-void XtSetSelectionTimeout(\fItimeout\fP)
-.br
-      unsigned long \fItimeout\fP;
-.FN
-.IP \fItimeout\fP 1i
-Specifies the selection timeout in milliseconds.
-This routine has been replaced by
-.PN XtAppSetSelectionTimeout .
-.PN XtInitialize
-must be called before using this routine.
-.LP
-.eM
-.sp
-.LP
-To get the current selection timeout value in the default application
-context, use
-.PN XtGetSelectionTimeout .
-.LP
-.IN "XtGetSelectionTimeout" "" "@DEF@"
-.sM
-.FD 0
-unsigned long XtGetSelectionTimeout()
-.FN
-.LP
-.eM
-The selection timeout is the time within which the two communicating 
-applications must respond to one another.
-If one of them does not respond within this interval,
-the \*(xI abort the selection request.
-.LP
-This routine has been replaced by
-.PN XtAppGetSelectionTimeout .
-.PN XtInitialize
-must be called before using this routine.
-.sp
-.LP
-To obtain the global error database (for example, to merge with
-an application- or widget-specific database), use
-.PN XtGetErrorDatabase .
-.LP
-.IN "XtGetErrorDatabase" "" "@DEF@"
-.sM
-.FD 0
-XrmDatabase *XtGetErrorDatabase()
-.FN
-.LP
-.eM
-The
-.PN XtGetErrorDatabase
-function returns the address of the error database.
-The \*(xI do a lazy binding of the error database and do not merge in the
-database file until the first call to
-.PN XtGetErrorDatbaseText .
-This routine has been replaced by
-.PN XtAppGetErrorDatabase .
-.sp
-.LP
-An error message handler can obtain the error database text for an
-error or a warning by calling
-.PN XtGetErrorDatabaseText .
-.LP
-.IN "XtGetErrorDatabaseText" "" "@DEF@"
-.sM
-.FD 0
-void XtGetErrorDatabaseText(\fIname\fP, \fItype\fP, \fIclass\fP, \
-\fIdefault\fP, \fIbuffer_return\fP, \fInbytes\fP)
-.br
-      String \fIname\fP, \fItype\fP, \fIclass\fP;
-.br
-      String \fIdefault\fP;
-.br
-      String \fIbuffer_return\fP;
-.br
-      int \fInbytes\fP;
-.FN
-.IP \fIname\fP 1i
-.br
-.ns
-.IP \fItype\fP 1i
-Specify the name and type that are concatenated to form the resource name 
-of the error message.
-.IP \fIclass\fP 1i
-Specifies the resource class of the error message.
-.IP \fIdefault\fP 1i
-Specifies the default message to use if an error database entry is not found.
-.IP \fIbuffer_return\fP 1i
-Specifies the buffer into which the error message is to be returned.
-.IP \fInbytes\fP 1i
-Specifies the size of the buffer in bytes.
-.LP
-.eM
-The
-.PN XtGetErrorDatabaseText
-returns the appropriate message from the error database
-associated with the default application context
-or returns the specified default message if one is not found in the
-error database.
-To form the full resource name and class when querying the database,
-the \fIname\fP and \fItype\fP are concatenated with a single ``.''
-between them and the \fIclass\fP is concatenated with itself with a
-single ``.'' if it does not already contain a ``.''.
-This routine has been superseded by
-.PN XtAppGetErrorDatabaseText .
-.sp
-.LP
-To register a procedure to be called on fatal error conditions, use
-.PN XtSetErrorMsgHandler .
-.LP
-.IN "XtSetErrorMsgHandler" "" "@DEF@"
-.sM
-.FD 0
-void XtSetErrorMsgHandler(\fImsg_handler\fP)
-.br
-      XtErrorMsgHandler \fImsg_handler\fP;
-.FN
-.IP \fImsg_handler\fP 1i
-Specifies the new fatal error procedure, which should not return.
-.LP
-.eM
-The default error handler provided by the \*(xI constructs a
-string from the error resource database and calls
-.PN XtError .
-Fatal error message handlers should not return.
-If one does,
-subsequent \*(xI behavior is undefined.
-This routine has been superseded by
-.PN XtAppSetErrorMsgHandler .
-.sp
-.LP
-To call the high-level error handler, use
-.PN XtErrorMsg .
-.LP
-.IN "XtErrorMsg" "" "@DEF@"
-.sM
-.FD 0
-void XtErrorMsg(\fIname\fP, \fItype\fP, \fIclass\fP, \fIdefault\fP, \
-\fIparams\fP, \fInum_params\fP)
-.br
-      String \fIname\fP;
-.br
-      String \fItype\fP;
-.br
-      String \fIclass\fP;
-.br
-      String \fIdefault\fP;
-.br
-      String *\fIparams\fP;
-.br
-      Cardinal *\fInum_params\fP;
-.FN
-.IP \fIname\fP 1i
-Specifies the general kind of error.
-.IP \fItype\fP 1i
-Specifies the detailed name of the error.
-.IP \fIclass\fP 1i
-Specifies the resource class.
-.IP \fIdefault\fP 1i
-Specifies the default message to use if an error database entry is not found.
-.IP \fIparams\fP 1i
-Specifies a pointer to a list of values to be stored in the message.
-.IP \fInum_params\fP 1i
-Specifies the number of entries in \fIparams\fP.
-.LP
-.eM
-This routine has been superseded by
-.PN XtAppErrorMsg .
-.sp
-.LP
-To register a procedure to be called on nonfatal error conditions, use
-.PN XtSetWarningMsgHandler .
-.LP
-.IN "XtSetWarningMsgHandler" "" "@DEF@"
-.sM
-.FD 0
-void XtSetWarningMsgHandler(\fImsg_handler\fP)
-.br
-      XtErrorMsgHandler \fImsg_handler\fP;
-.FN
-.IP \fImsg_handler\fP 1i
-Specifies the new nonfatal error procedure, which usually returns.
-.LP
-.eM
-The default warning handler provided by the \*(xI constructs a string
-from the error resource database and calls
-.PN XtWarning .
-This routine has been superseded by
-.PN XtAppSetWarningMsgHandler .
-.sp
-.LP
-To call the installed high-level warning handler, use
-.PN XtWarningMsg .
-.LP
-.IN "XtWarningMsg" "" "@DEF@"
-.sM
-.FD 0
-void XtWarningMsg(\fIname\fP, \fItype\fP, \fIclass\fP, \fIdefault\fP, \
-\fIparams\fP, \fInum_params\fP)
-.br
-      String \fIname\fP;
-.br
-      String \fItype\fP;
-.br
-      String \fIclass\fP;
-.br
-      String \fIdefault\fP;
-.br
-      String *\fIparams\fP;
-.br
-      Cardinal *\fInum_params\fP;
-.FN
-.IP \fIname\fP 1i
-Specifies the general kind of error.
-.IP \fItype\fP 1i
-Specifies the detailed name of the error.
-.IP \fIclass\fP 1i
-Specifies the resource class.
-.IP \fIdefault\fP 1i
-Specifies the default message to use if an error database entry is not found.
-.IP \fIparams\fP 1i
-Specifies a pointer to a list of values to be stored in the message.
-.IP \fInum_params\fP 1i
-Specifies the number of entries in \fIparams\fP.
-.LP
-.eM
-This routine has been superseded by
-.PN XtAppWarningMsg .
-.sp
-.LP
-To register a procedure to be called on fatal error conditions, use
-.PN XtSetErrorHandler .
-.LP
-.IN "XtSetErrorHandler" "" "@DEF@"
-.sM
-.FD 0
-void XtSetErrorHandler(\fIhandler\fP)
-.br
-      XtErrorHandler \fIhandler\fP;
-.FN
-.IP \fIhandler\fP 1i
-Specifies the new fatal error procedure, which should not return.
-.LP
-.eM
-The default error handler provided by the \*(xI is
-.PN _XtError .
-On POSIX-based systems,
-it prints the message to standard error and terminates the application.
-Fatal error message handlers should not return.
-If one does,
-subsequent \*(tk behavior is undefined.
-This routine has been superseded by
-.PN XtAppSetErrorHandler .
-.sp
-.LP
-To call the installed fatal error procedure, use
-.PN XtError .
-.LP
-.IN "XtError" "" "@DEF@"
-.sM
-.FD 0
-void XtError(\fImessage\fP)
-.br
-      String \fImessage\fP;
-.FN
-.IP \fImessage\fP 1i
-Specifies the message to be reported.
-.LP
-.eM
-Most programs should use
-.PN XtAppErrorMsg ,
-not
-.PN XtError ,
-to provide for customization and internationalization of error
-messages.  This routine has been superseded by
-.PN XtAppError .
-.sp
-.LP
-To register a procedure to be called on nonfatal error conditions, use
-.PN XtSetWarningHandler .
-.LP
-.IN "XtSetWarningHandler" "" "@DEF@"
-.sM
-.FD 0
-void XtSetWarningHandler(\fIhandler\fP)
-.br
-      XtErrorHandler \fIhandler\fP;
-.FN
-.IP \fIhandler\fP 1i
-Specifies the new nonfatal error procedure, which usually returns.
-.LP
-.eM
-The default warning handler provided by the \*(xI is
-.PN _XtWarning .
-On POSIX-based systems,
-it prints the message to standard error and returns to the caller.
-This routine has been superseded by
-.PN XtAppSetWarningHandler .
-.sp
-.LP
-To call the installed nonfatal error procedure, use
-.PN XtWarning .
-.LP
-.IN "XtWarning" "" "@DEF@"
-.sM
-.FD 0
-void XtWarning(\fImessage\fP)
-.br
-      String \fImessage\fP;
-.FN
-.IP \fImessage\fP 1i
-Specifies the nonfatal error message to be reported.
-.LP
-.eM
-Most programs should use
-.PN XtAppWarningMsg ,
-not
-.PN XtWarning ,
-to provide for customization and internationalization of warning messages.
-This routine has been superseded by
-.PN XtAppWarning .