object
method add_accelerator : Gdk.Tags.modifier -> char -> unit
method check_menu_item : GMenu.check_menu_item option
method menu : GMenu.menu option
method menu_item : GMenu.menu_item option
method menu_item_skel : GMenu.menu_item_skel option
method toggle_tool_button : GButton.toggle_tool_button option
method tool_button : GButton.tool_button option
method tool_button_skel : GButton.tool_button_skel option
end