# Module Gdk.Rgb

    module Rgb: sig .. end

    val init : unit -> unit

    val get_visual : unit -> Gdk.visual

    val get_cmap : unit -> Gdk.colormap

    val draw_image : [> `drawable ] Gobject.obj ->
           Gdk.gc ->
           width:int ->
           height:int ->
           ?x:int ->
           ?y:int ->
           ?dither:Gdk.Tags.rgb_dither -> ?row_stride:int -> Gpointer.region -> unit