XcmsAllocColor(3)						  XLIB FUNCTIONS						 XcmsAllocColor(3)

NAME

       XcmsAllocColor, XcmsAllocNamedColor - allocate colors

SYNTAX

       Status XcmsAllocColor(Display *display, Colormap colormap, XcmsColor *color_in_out, XcmsColorFormat result_format);

       Status XcmsAllocNamedColor(Display *display, Colormap colormap, char *color_string, XcmsColor *color_screen_return, XcmsColor
	      *color_exact_return, XcmsColorFormat result_format);

ARGUMENTS

       display	 Specifies the connection to the X server.

       colormap  Specifies the colormap.

       color_exact_return
		 Returns the color specification parsed from the color string or parsed from the corresponding string found in a color-name data-
		 base.

       color_in_out
		 Specifies the color to allocate and returns the pixel and color that is actually used in the colormap.

       color_screen_return
		 Returns the pixel value of the color cell and color specification that actually is stored for that cell.

       color_string
		 Specifies the color string whose color definition structure is to be returned.

       result_format
		 Specifies the color format for the returned color specification.

DESCRIPTION

       The XcmsAllocColor function is similar to XAllocColor except the color can be specified in any format.  The XcmsAllocColor function ulti-
       mately calls XAllocColor to allocate a read-only color cell (colormap entry) with the specified color.  XcmsAllocColor first converts the
       color specified to an RGB value and then passes this to XAllocColor.  XcmsAllocColor returns the pixel value of the color cell and the
       color specification actually allocated.	This returned color specification is the result of converting the RGB value returned by XAlloc-
       Color into the format specified with the result_format argument.  If there is no interest in a returned color specification, unnecessary
       computation can be bypassed if result_format is set to XcmsRGBFormat.  The corresponding colormap cell is read-only.  If this routine
       returns XcmsFailure, the color_in_out color specification is left unchanged.

       XcmsAllocColor can generate a BadColor errors.

       The XcmsAllocNamedColor function is similar to XAllocNamedColor except that the color returned can be in any format specified.  This func-
       tion ultimately calls XAllocColor to allocate a read-only color cell with the color specified by a color string.  The color string is
       parsed into an XcmsColor structure (see XcmsLookupColor), converted to an RGB value, and finally passed to XAllocColor.	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.

       This function returns both the color specification as a result of parsing (exact specification) and the actual color specification stored
       (screen specification).	This screen specification is the result of converting the RGB value returned by XAllocColor into the format speci-
       fied in result_format.  If there is no interest in a returned color specification, unnecessary computation can be bypassed if result_format
       is set to XcmsRGBFormat.  If color_screen_return and color_exact_return point to the same structure, the pixel field will be set correctly,
       but the color values are undefined.

       XcmsAllocNamedColor can generate a BadColor errors.

DIAGNOSTICS

       BadColor  A value for a Colormap argument does not name a defined Colormap.

SEE ALSO

       XcmsQueryColor(3), XcmsStoreColor(3)
       Xlib - C Language X Interface

X Version 11							   libX11 1.3.2 						 XcmsAllocColor(3)