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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /libX11/man/XAllocStandardColormap.man | |
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randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
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libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'libX11/man/XAllocStandardColormap.man')
-rw-r--r-- | libX11/man/XAllocStandardColormap.man | 407 |
1 files changed, 407 insertions, 0 deletions
diff --git a/libX11/man/XAllocStandardColormap.man b/libX11/man/XAllocStandardColormap.man new file mode 100644 index 000000000..0baf05ca5 --- /dev/null +++ b/libX11/man/XAllocStandardColormap.man @@ -0,0 +1,407 @@ +'\" t +.\" Copyright \(co 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1994, 1996 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, 1989, 1990, 1991 by +.\" Digital Equipment Corporation +.\" +.\" Portions Copyright \(co 1990, 1991 by +.\" Tektronix, Inc. +.\" +.\" 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 all copies, and that the names of +.\" Digital and Tektronix not be used in in advertising or publicity pertaining +.\" to this documentation without specific, written prior permission. +.\" Digital and Tektronix makes no representations about the suitability +.\" of this documentation for any purpose. +.\" It is provided ``as is'' without express or implied warranty. +.\" +.\" $XFree86: xc/doc/man/X11/XASCmap.man,v 1.5 2003/04/28 22:17:54 herrb Exp $ +.\" $XdotOrg: lib/X11/man/XAllocStandardColormap.man,v 1.3 2005-08-17 01:27:08 alanc Exp $ +.\" +.ds xT X Toolkit Intrinsics \- C Language Interface +.ds xW Athena X Widgets \- C Language X Toolkit Interface +.ds xL Xlib \- C Language X Interface +.ds xC Inter-Client Communication Conventions Manual +.na +.de Ds +.nf +.\\$1D \\$2 \\$1 +.ft 1 +.\".ps \\n(PS +.\".if \\n(VS>=40 .vs \\n(VSu +.\".if \\n(VS<=39 .vs \\n(VSp +.. +.de De +.ce 0 +.if \\n(BD .DF +.nr BD 0 +.in \\n(OIu +.if \\n(TM .ls 2 +.sp \\n(DDu +.fi +.. +.de FD +.LP +.KS +.TA .5i 3i +.ta .5i 3i +.nf +.. +.de FN +.fi +.KE +.LP +.. +.de IN \" send an index entry to the stderr +.. +.de C{ +.KS +.nf +.D +.\" +.\" choose appropriate monospace font +.\" the imagen conditional, 480, +.\" may be changed to L if LB is too +.\" heavy for your eyes... +.\" +.ie "\\*(.T"480" .ft L +.el .ie "\\*(.T"300" .ft L +.el .ie "\\*(.T"202" .ft PO +.el .ie "\\*(.T"aps" .ft CW +.el .ft R +.ps \\n(PS +.ie \\n(VS>40 .vs \\n(VSu +.el .vs \\n(VSp +.. +.de C} +.DE +.R +.. +.de Pn +.ie t \\$1\fB\^\\$2\^\fR\\$3 +.el \\$1\fI\^\\$2\^\fP\\$3 +.. +.de ZN +.ie t \fB\^\\$1\^\fR\\$2 +.el \fI\^\\$1\^\fP\\$2 +.. +.de hN +.ie t <\fB\\$1\fR>\\$2 +.el <\fI\\$1\fP>\\$2 +.. +.de NT +.ne 7 +.ds NO Note +.if \\n(.$>$1 .if !'\\$2'C' .ds NO \\$2 +.if \\n(.$ .if !'\\$1'C' .ds NO \\$1 +.ie n .sp +.el .sp 10p +.TB +.ce +\\*(NO +.ie n .sp +.el .sp 5p +.if '\\$1'C' .ce 99 +.if '\\$2'C' .ce 99 +.in +5n +.ll -5n +.R +.. +. \" Note End -- doug kraft 3/85 +.de NE +.ce 0 +.in -5n +.ll +5n +.ie n .sp +.el .sp 10p +.. +.ny0 +'\" t +.TH XAllocStandardColormap __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS" +.SH NAME +XAllocStandardColormap, XSetRGBColormaps, XGetRGBColormaps, XStandardColormap \- allocate, set, or read a standard colormap structure +.SH SYNTAX +.HP +XStandardColormap *XAllocStandardColormap\^(void\^); +.HP +void XSetRGBColormaps\^(\^Display *\fIdisplay\fP, Window \fIw\fP, +XStandardColormap *\fIstd_colormap\fP, +int \fIcount\fP, Atom \fIproperty\fP\^); +.HP +Status XGetRGBColormaps\^(\^Display *\fIdisplay\fP, Window \fIw\fP, +XStandardColormap **\fIstd_colormap_return\fP, int *\fIcount_return\fP, +Atom \fIproperty\fP\^); +.SH ARGUMENTS +.IP \fIdisplay\fP 1i +Specifies the connection to the X server. +.ds Cn colormaps +.IP \fIcount\fP 1i +Specifies the number of \*(Cn. +.ds Cn colormaps +.IP \fIcount_return\fP 1i +Returns the number of \*(Cn. +.IP \fIproperty\fP 1i +Specifies the property name. +.IP \fIstd_colormap\fP 1i +Specifies the +.ZN XStandardColormap +structure to be used. +.IP \fIstd_colormap_return\fP 1i +Returns the +.ZN XStandardColormap +structure. +.SH DESCRIPTION +The +.ZN XAllocStandardColormap +function allocates and returns a pointer to a +.ZN XStandardColormap +structure. +Note that all fields in the +.ZN XStandardColormap +structure are initially set to zero. +If insufficient memory is available, +.ZN XAllocStandardColormap +returns NULL. +To free the memory allocated to this structure, +use +.ZN XFree . +.LP +The +.ZN XSetRGBColormaps +function replaces the RGB colormap definition in the specified property +on the named window. +If the property does not already exist, +.ZN XSetRGBColormaps +sets the RGB colormap definition in the specified property +on the named window. +The property is stored with a type of RGB_COLOR_MAP and a format of 32. +Note that it is the caller's responsibility to honor the ICCCM +restriction that only RGB_DEFAULT_MAP contain more than one definition. +.LP +The +.ZN XSetRGBColormaps +function usually is only used by window or session managers. +To create a standard colormap, +follow this procedure: +.IP 1. 5 +Open a new connection to the same server. +.IP 2. 5 +Grab the server. +.IP 3. 5 +See if the property is on the property list of the root window for the screen. +.IP 4. 5 +If the desired property is not present: +.RS +.IP \(bu 5 +Create a colormap (unless you are using the default colormap of the screen). +.IP \(bu 5 +Determine the color characteristics of the visual. +.IP \(bu 5 +Allocate cells in the colormap (or create it with +.ZN AllocAll ). +.IP \(bu 5 +Call +.ZN XStoreColors +to store appropriate color values in the colormap. +.IP \(bu 5 +Fill in the descriptive members in the +.ZN XStandardColormap +structure. +.IP \(bu 5 +Attach the property to the root window. +.IP \(bu 5 +Use +.ZN XSetCloseDownMode +to make the resource permanent. +.RE +.IP 5. 5 +Ungrab the server. +.LP +.ZN XSetRGBColormaps +can generate +.ZN BadAlloc , +.ZN BadAtom , +and +.ZN BadWindow +errors. +.LP +The +.ZN XGetRGBColormaps +function returns the RGB colormap definitions stored +in the specified property on the named window. +If the property exists, is of type RGB_COLOR_MAP, is of format 32, +and is long enough to contain a colormap definition, +.ZN XGetRGBColormaps +allocates and fills in space for the returned colormaps +and returns a nonzero status. +If the visualid is not present, +.ZN XGetRGBColormaps +assumes the default visual for the screen on which the window is located; +if the killid is not present, +.ZN None +is assumed, which indicates that the resources cannot be released. +Otherwise, +none of the fields are set, and +.ZN XGetRGBColormaps +returns a zero status. +Note that it is the caller's responsibility to honor the ICCCM +restriction that only RGB_DEFAULT_MAP contain more than one definition. +.LP +.ZN XGetRGBColormaps +can generate +.ZN BadAtom +and +.ZN BadWindow +errors. +.SH STRUCTURES +The +.ZN XStandardColormap +structure contains: +.LP +/\&* Hints */ +.TS +lw(.5i) lw(2i) lw(1i). +T{ +\&#define +T} T{ +.ZN ReleaseByFreeingColormap +T} T{ +( (XID) 1L) +T} +.TE +/\&* Values */ +.IN "XStandardColormap" "" "@DEF@" +.Ds 0 +.TA .5i 2.5i +.ta .5i 2.5i +typedef struct { + Colormap colormap; + unsigned long red_max; + unsigned long red_mult; + unsigned long green_max; + unsigned long green_mult; + unsigned long blue_max; + unsigned long blue_mult; + unsigned long base_pixel; + VisualID visualid; + XID killid; +} XStandardColormap; +.De +.LP +The colormap member is the colormap created by the +.ZN XCreateColormap +function. +The red_max, green_max, and blue_max members give the maximum +red, green, and blue values, respectively. +Each color coefficient ranges from zero to its max, inclusive. +For example, +a common colormap allocation is 3/3/2 (3 planes for red, 3 +planes for green, and 2 planes for blue). +This colormap would have red_max = 7, green_max = 7, +and blue_max = 3. +An alternate allocation that uses only 216 colors is red_max = 5, +green_max = 5, and blue_max = 5. +.LP +The red_mult, green_mult, and blue_mult members give the +scale factors used to compose a full pixel value. +(See the discussion of the base_pixel members for further information.) +For a 3/3/2 allocation, red_mult might be 32, +green_mult might be 4, and blue_mult might be 1. +For a 6-colors-each allocation, red_mult might be 36, +green_mult might be 6, and blue_mult might be 1. +.LP +The base_pixel member gives the base pixel value used to +compose a full pixel value. +Usually, the base_pixel is obtained from a call to the +.ZN XAllocColorPlanes +function. +Given integer red, green, and blue coefficients in their appropriate +ranges, one then can compute a corresponding pixel value by +using the following expression: +.LP +.Ds +.TA .5i 1.5i +.ta .5i 1.5i +(r * red_mult + g * green_mult + b * blue_mult + base_pixel) & 0xFFFFFFFF +.De +.LP +For +.ZN GrayScale +colormaps, +only the colormap, red_max, red_mult, +and base_pixel members are defined. +The other members are ignored. +To compute a +.ZN GrayScale +pixel value, use the following expression: +.LP +.Ds +.TA .5i 1.5i +.ta .5i 1.5i +(gray * red_mult + base_pixel) & 0xFFFFFFFF +.De +.LP +Negative multipliers can be represented by converting the 2's +complement representation of the multiplier into an unsigned long and +storing the result in the appropriate _mult field. +The step of masking by 0xFFFFFFFF effectively converts the resulting +positive multiplier into a negative one. +The masking step will take place automatically on many machine architectures, +depending on the size of the integer type used to do the computation, +.LP +The visualid member gives the ID number of the visual from which the +colormap was created. +The killid member gives a resource ID that indicates whether +the cells held by this standard colormap are to be released +by freeing the colormap ID or by calling the +.ZN XKillClient +function on the indicated resource. +(Note that this method is necessary for allocating out of an existing colormap.) +.LP +The properties containing the +.ZN XStandardColormap +information have +the type RGB_COLOR_MAP. +.SH DIAGNOSTICS +.TP 1i +.ZN BadAlloc +The server failed to allocate the requested resource or server memory. +.TP 1i +.ZN BadAtom +A value for an Atom argument does not name a defined Atom. +.TP 1i +.ZN BadWindow +A value for a Window argument does not name a defined Window. +.SH "SEE ALSO" +XAllocColor(3X11), +XCreateColormap(3X11), +XFree(3X11), +XSetCloseDownMode(3X11) +.br +\fI\*(xL\fP |