ignore (self#event#connect#button_press self#button_press_cb);
ignore (self#event#connect#button_release self#button_release_cb);
ignore (self#event#connect#selection_clear self#selection_clear_cb);
ignore (self#event#connect#button_press self#button_press_cb);
ignore (self#event#connect#button_release self#button_release_cb);
ignore (self#event#connect#selection_clear self#selection_clear_cb);