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diff --git a/libX11/man/XAllocColor.man b/libX11/man/XAllocColor.man new file mode 100644 index 000000000..ef379b0b2 --- /dev/null +++ b/libX11/man/XAllocColor.man @@ -0,0 +1,448 @@ +'\" e +.\" 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/XAllColor.man,v 1.3 2001/02/09 03:47:45 tsi 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 +'\" e +.TH XAllocColor __libmansuffix__ __xorgversion__ "XLIB FUNCTIONS" +.SH NAME +XAllocColor, XAllocNamedColor, XAllocColorCells, XAllocColorPlanes, XFreeColors \- allocate and free colors +.SH SYNTAX +.HP +Status XAllocColor\^(\^Display *\fIdisplay\fP, Colormap \fIcolormap\fP\^, +XColor *\fIscreen_in_out\fP\^); +.HP +Status XAllocNamedColor\^(\^Display *\fIdisplay\fP, Colormap \fIcolormap\fP\^, +char *\fIcolor_name\fP\^, XColor *\fIscreen_def_return\fP\^, XColor +*\fIexact_def_return\fP\^); +.HP +Status XAllocColorCells\^(\^Display *\fIdisplay\fP, Colormap \fIcolormap\fP\^, +Bool \fIcontig\fP\^, unsigned long\fIplane_masks_return\fP[\^]\^, unsigned int +\fInplanes\fP\^, unsigned long \fIpixels_return\fP[\^]\^, unsigned int +\fInpixels\fP\^); +.HP +Status XAllocColorPlanes\^(\^Display *\fIdisplay\fP, Colormap +\fIcolormap\fP\^, Bool \fIcontig\fP\^, unsigned long +\fIpixels_return\fP[\^]\^, int \fIncolors\fP\^, int \fInreds\fP\^, int +\fIngreens\fP\^, int \fInblues\fP\^, unsigned long *\fIrmask_return\fP\^, +unsigned long *\fIgmask_return\fP\^, unsigned long *\fIbmask_return\fP\^); +.HP +int XFreeColors\^(\^Display *\fIdisplay\fP, Colormap \fIcolormap\fP\^, unsigned +long \fIpixels\fP\^[\^], int \fInpixels\fP\^, unsigned long \fIplanes\fP\^); +.IP \fIcolor_name\fP 1i +Specifies the color name string (for example, red) whose color +definition structure you want returned. +.IP \fIcolormap\fP 1i +Specifies the colormap. +.IP \fIcontig\fP 1i +Specifies a Boolean value that indicates whether the planes must be contiguous. +.IP \fIdisplay\fP 1i +Specifies the connection to the X server. +.IP \fIexact_def_return\fP 1i +Returns the exact RGB values. +.IP \fIncolors\fP 1i +Specifies the number of pixel values that are to be returned in the +pixels_return array. +.IP \fInpixels\fP 1i +Specifies the number of pixels. +.IP \fInplanes\fP 1i +Specifies the number of plane masks that are to be returned in the plane masks +array. +.IP \fInreds\fP 1i +.br +.ns +.IP \fIngreens\fP 1i +.br +.ns +.IP \fInblues\fP 1i +.br +.ns +Specify the number of red, green, and blue planes. +The value you pass must be nonnegative. +.IP \fIpixels\fP 1i +Specifies an array of pixel values. +.IP \fIpixels_return\fP 1i +Returns an array of pixel values. +.IP \fIplane_mask_return\fP 1i +Returns an array of plane masks. +.\" *** JIM: NEED MORE INFO FOR THIS. *** +.IP \fIplanes\fP 1i +Specifies the planes you want to free. +.IP \fIrmask_return\fP 1i +.br +.ns +.IP \fIgmask_return\fP 1i +.br +.ns +.IP \fIbmask_return\fP 1i +Return bit masks for the red, green, and blue planes. +.IP \fIscreen_def_return\fP 1i +Returns the closest RGB values provided by the hardware. +.IP \fIscreen_in_out\fP 1i +Specifies and returns the values actually used in the colormap. +.SH DESCRIPTION +The +.ZN XAllocColor +function allocates a read-only colormap entry corresponding to the closest +RGB value supported by the hardware. +.ZN XAllocColor +returns the pixel value of the color closest to the specified +RGB elements supported by the hardware +and returns the RGB value actually used. +The corresponding colormap cell is read-only. +In addition, +.ZN XAllocColor +returns nonzero if it succeeded or zero if it failed. +.IN "Color map" +.IN "Color" "allocation" +.IN "Allocation" "colormap" +.IN "read-only colormap cells" +Multiple clients that request the same effective RGB value can be assigned +the same read-only entry, thus allowing entries to be shared. +When the last client deallocates a shared cell, it is deallocated. +.ZN XAllocColor +does not use or affect the flags in the +.ZN XColor +structure. +.LP +.ZN XAllocColor +can generate a +.ZN BadColor +error. +.LP +The +.ZN XAllocNamedColor +function looks up the named color with respect to the screen that is +associated with the specified colormap. +It returns both the exact database definition and +the closest color supported by the screen. +The allocated color cell is read-only. +The pixel value is returned in screen_def_return. +If the color name is not in the Host Portable Character Encoding, +the result is implementation-dependent. +Use of uppercase or lowercase does not matter. +If screen_def_return and exact_def_return +point to the same structure, the pixel field will be set correctly, +but the color values are undefined. +.ZN XAllocNamedColor +returns nonzero if a cell is allocated; +otherwise, it returns zero. +.LP +.ZN XAllocNamedColor +can generate a +.ZN BadColor +error. +.LP +.EQ +delim %% +.EN +The +.ZN XAllocColorCells +function allocates read/write color cells. +The number of colors must be positive and the number of planes nonnegative, +or a +.ZN BadValue +error results. +If ncolors and nplanes are requested, +then ncolors pixels +and nplane plane masks are returned. +No mask will have any bits set to 1 in common with +any other mask or with any of the pixels. +By ORing together each pixel with zero or more masks, +ncolors * %2 sup nplanes% distinct pixels can be produced. +All of these are +allocated writable by the request. +For +.ZN GrayScale +or +.ZN PseudoColor , +each mask has exactly one bit set to 1. +For +.ZN DirectColor , +each has exactly three bits set to 1. +If contig is +.ZN True +and if all masks are ORed +together, a single contiguous set of bits set to 1 will be formed for +.ZN GrayScale +or +.ZN PseudoColor +and three contiguous sets of bits set to 1 (one within each +pixel subfield) for +.ZN DirectColor . +The RGB values of the allocated +entries are undefined. +.ZN XAllocColorCells +returns nonzero if it succeeded or zero if it failed. +.LP +.ZN XAllocColorCells +can generate +.ZN BadColor +and +.ZN BadValue +errors. +.LP +.EQ +delim %% +.EN +The specified ncolors must be positive; +and nreds, ngreens, and nblues must be nonnegative, +or a +.ZN BadValue +error results. +If ncolors colors, nreds reds, ngreens greens, and nblues blues are requested, +ncolors pixels are returned; and the masks have nreds, ngreens, and +nblues bits set to 1, respectively. +If contig is +.ZN True , +each mask will have +a contiguous set of bits set to 1. +No mask will have any bits set to 1 in common with +any other mask or with any of the pixels. +For +.ZN DirectColor , +each mask +will lie within the corresponding pixel subfield. +By ORing together +subsets of masks with each pixel value, +ncolors * %2 sup (nreds+ngreens+nblues)% distinct pixel values can be produced. +All of these are allocated by the request. +However, in the +colormap, there are only ncolors * %2 sup nreds% independent red entries, +ncolors * %2 sup ngreens% independent green entries, +and ncolors * %2 sup nblues% independent blue entries. +This is true even for +.ZN PseudoColor . +When the colormap entry of a pixel +value is changed (using +.ZN XStoreColors , +.ZN XStoreColor , +or +.ZN XStoreNamedColor ), +the pixel is decomposed according to the masks, +and the corresponding independent entries are updated. +.ZN XAllocColorPlanes +returns nonzero if it succeeded or zero if it failed. +.LP +.ZN XAllocColorPlanes +can generate +.ZN BadColor +and +.ZN BadValue +errors. +.LP +The +.ZN XFreeColors +function frees the cells represented by pixels whose values are in the +pixels array. +The planes argument should not have any bits set to 1 in common with any of the +pixels. +The set of all pixels is produced by ORing together subsets of +the planes argument with the pixels. +The request frees all of these pixels that +were allocated by the client (using +.IN XAllocColor +.IN XAllocNamedColor +.IN XAllocColorCells +.IN XAllocColorPlanes +.ZN XAllocColor , +.ZN XAllocNamedColor , +.ZN XAllocColorCells , +and +.ZN XAllocColorPlanes ). +Note that freeing an +individual pixel obtained from +.ZN XAllocColorPlanes +may not actually allow +it to be reused until all of its related pixels are also freed. +Similarly, +a read-only entry is not actually freed until it has been freed by all clients, +and if a client allocates the same read-only entry multiple times, +it must free the entry that many times before the entry is actually freed. +.LP +All specified pixels that are allocated by the client in the colormap are +freed, even if one or more pixels produce an error. +If a specified pixel is not a valid index into the colormap, a +.ZN BadValue +error results. +If a specified pixel is not allocated by the +client (that is, is unallocated or is only allocated by another client) +or if the colormap was created with all entries writable (by passing +.ZN AllocAll +to +.ZN XCreateColormap ), +a +.ZN BadAccess +error results. +If more than one pixel is in error, +the one that gets reported is arbitrary. +.LP +.ZN XFreeColors +can generate +.ZN BadAccess , +.ZN BadColor , +and +.ZN BadValue +errors. +.SH DIAGNOSTICS +.TP 1i +.ZN BadAccess +A client attempted +to free a color map entry that it did not already allocate. +.TP 1i +.ZN BadAccess +A client attempted +to store into a read-only color map entry. +.TP 1i +.ZN BadColor +A value for a Colormap argument does not name a defined Colormap. +.TP 1i +.ZN BadValue +Some numeric value falls outside the range of values accepted by the request. +Unless a specific range is specified for an argument, the full range defined +by the argument's type is accepted. Any argument defined as a set of +alternatives can generate this error. +.SH "SEE ALSO" +XCreateColormap(3X11), +XQueryColor(3X11), +XStoreColors(3X11) +.br +\fI\*(xL\fP |