let button_get_width = GButton.button ~label:"get_width" ~packing:hbox#pack () in
let button_get_height = GButton.button ~label:"get_height" ~packing:hbox#pack () in
let button_set_adjustments = GButton.button ~label:"set_adjustments" ~packing:hbox#pack () in
let button_get_width = GButton.button ~label:"get_width" ~packing:hbox#pack () in
let button_get_height = GButton.button ~label:"get_height" ~packing:hbox#pack () in
let button_set_adjustments = GButton.button ~label:"set_adjustments" ~packing:hbox#pack () in