Warning
gdk_gc_set_colormap has been deprecated since version 2.22 and should not be used in newly-written code. There is no replacement. Cairo handles colormaps
automatically, so there is no need to care about them.
Sets the colormap for the GC to the given colormap. The depth
of the colormap's visual must match the depth of the drawable
for which the GC was created.
Warning gdk_gc_set_colormap has been deprecated since version 2.22 and should not be used in newly-written code. There is no replacement. Cairo handles colormaps automatically, so there is no need to care about them. Sets the colormap for the GC to the given colormap. The depth of the colormap's visual must match the depth of the drawable for which the GC was created.