1 files changed, 447 insertions, 447 deletions

diff --git a/libX11/man/XAllocColor.man b/libX11/man/XAllocColor.man
index 851f4d747..1f04d6e57 100644
--- a/libX11/man/XAllocColor.man
+++ b/libX11/man/XAllocColor.man
@@ -1,447 +1,447 @@
-'\" 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.
-.\" 
-.\"
-.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
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-..
-.de hN
-.ie t <\fB\\$1\fR>\\$2
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-..
-.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(__libmansuffix__), 
-XQueryColor(__libmansuffix__),
-XStoreColors(__libmansuffix__) 
-.br
-\fI\*(xL\fP
+'\" 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.

+.\" 

+.\"

+.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(__libmansuffix__), 

+XQueryColor(__libmansuffix__),

+XStoreColors(__libmansuffix__) 

+.br

+\fI\*(xL\fP