Warning
gdk_screen_get_rgb_colormap has been deprecated since version 2.22 and should not be used in newly-written code. Use gdk_screen_get_system_colormap()
Gets the preferred colormap for rendering image data on screen.
Not a very useful function; historically, GDK could only render RGB
image data to one colormap and visual, but in the current version
it can render to any colormap and visual. So there's no need to
call this function.
Since 2.2
Warning gdk_screen_get_rgb_colormap has been deprecated since version 2.22 and should not be used in newly-written code. Use gdk_screen_get_system_colormap() Gets the preferred colormap for rendering image data on screen. Not a very useful function; historically, GDK could only render RGB image data to one colormap and visual, but in the current version it can render to any colormap and visual. So there's no need to call this function. Since 2.2