class area_signals :Inherits[> gl_area ] Gtk.obj ->object..end
GObj.widget_signalsval obj : ([> gl_area ] as 'a) Gtk.objmethod display : callback:(unit -> unit) -> GtkSignal.idmethod realize : callback:(unit -> unit) -> GtkSignal.idmethod reshape : callback:(width:int -> height:int -> unit) -> GtkSignal.id