gdk-query-visual-types ()

A list of the available visual types of type gdk-visual-type.

This function returns the available visual types for the default screen. It is equivalent to listing the visuals with the gdk-list-visuals function and then looking at the type field in each visual, removing duplicates. The gdk-query-visual-types function has been deprecated since version 3.22 and should not be used in newly written code. Visual selection should be done using the gdk-screen-system-visual and gdk-screen-rgba-visual functions.