The
XcmsSetCCCOfColormap()
function changes the CCC associated with the specified colormap.
It returns the CCC previously associated with the colormap.
If they are not used again in the application,
CCCs should be freed by calling
XcmsFreeCCC().
Several colormaps may share the same CCC without restriction; this
includes the CCCs generated by Xlib with each colormap. Xlib, however,
creates a new CCC with each new colormap.