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RedHat 9 (Linux i386) - man page for xmsetcolorcalculation (redhat section 3)

XmSetColorCalculation(library call)			      XmSetColorCalculation(library call)

NAME
       XmSetColorCalculation  --  A function to set the procedure used for default color calcula-
       tion

SYNOPSIS
       #include <Xm/Xm.h>
       XmColorProc XmSetColorCalculation(
       XmColorProc color_proc);

DESCRIPTION
       XmSetColorCalculation sets the procedure to calculate default colors.  This  procedure  is
       used  to  calculate  the  foreground,  top shadow, bottom shadow, and select colors on the
       basis of a given background color.  If called with an argument of NULL,	it  restores  the
       default procedure used to calculate colors.

       color_proc
		 Specifies the procedure to use for color calculation.

       Following is a description of the XmColorProc type used by XmSetColorCalculation:

       void (*color_proc) (background_color, foreground_color, select_color, top_shadow_color,
       bottom_shadow_color)
	       XColor  *background_color;
	       XColor  *foreground_color;
	       XColor  *select_color;
	       XColor  *top_shadow_color;
	       XColor  *bottom_shadow_color;
       (void)

       Specifies  the  procedure  used	to  calculate  default colors.	The procedure is passed a
       pointer to an XColor structure representing the background color.  The pixel, red,  green,
       and  blue  members of this structure are filled in with values that are valid for the cur-
       rent colormap.

       The procedure is passed pointers to XColor structures representing the foreground, select,
       top shadow, and bottom shadow colors to be calculated.  The procedure calculates and fills
       in the red, green, and blue members of these structures.  The procedure should  not  allo-
       cate color cells for any of these colors.

       background_color
		 Specifies the background color.

       foreground_color
		 Specifies the foreground color to be calculated.

       select_color
		 Specifies the select color to be calculated.

       top_shadow_color
		 Specifies the top shadow color to be calculated.

       bottom_shadow_color
		 Specifies the bottom shadow color to be calculated.

RETURN
       Returns the color calculation procedure that was used at the time this routine was called.

RELATED
       XmChangeColor(3), XmGetColors(3), and XmGetColorCalculation(3).

							      XmSetColorCalculation(library call)


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