gdk:visual-colormap-size (visual)

visual -- a gdk:visual object

The integer with the size of a colormap that is suitable for visual.

Returns the size of a colormap for the visual. The gdk:visual-colormap-size function has been deprecated since version 3.22 and should not be used in newly written code. This information is not useful, since GDK does not provide APIs to operate on colormaps.