NAME

XAllocStandardColormap − allocate an XStandardColormap structure. 

Synopsis

XStandardColormap *XAllocStandardColormap()

Availability

Release 4 and later. 

Description

XAllocStandardColormap() allocates and returns a pointer to an XStandardColormap structure for use in calling XGetRGBColormaps() or XSetRGBColormaps().  Note that all fields in the XStandardColormap structure are initially set to zero.  If insufficient memory is available, XAllocStandardColormap() returns NULL.  To free the memory allocated to this structure, use XFree().  The purpose of this function is to avoid compiled-in structure sizes, so that object files will be binary compatible with later releases that may have new members added to structures.  For more information, see Volume One, Chapter 7, Color. 

Structures

/* value for killid field */

typedef struct {
     Colormap colormap;
     unsigned long red_max;
     unsigned long red_mult;
     unsigned long green_max;
     unsigned long green_mult;
     unsigned long blue_max;
     unsigned long blue_mult;
     unsigned long base_pixel;
     VisualID visualid;
     XID killid;
} XStandardColormap;

See Also

XGetRGBColormaps(), XSetRGBColormaps(). 

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