module Drawable:sig..end
val cast : 'a Gobject.obj -> [ `drawable ] Gobject.objval get_visual : [> `drawable ] Gobject.obj -> Gdk.visualval get_depth : [> `drawable ] Gobject.obj -> intval get_colormap : [> `drawable ] Gobject.obj -> Gdk.colormapval get_size : [> `drawable ] Gobject.obj -> int * int