NAME
XmSetColorCalculation — A function to set the procedure used for
default color calculation
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 current
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 allocate
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)