[ Version ( since = "3.16" ) ]
public void open_submenu (string name)
Opens a submenu of the this.
The name must be one of the names given to the submenus of this with
GtkPopoverMenu:submenu, or "main" to switch back to the main menu.
ModelButton will open submenus automatically when the menu_name property is set, so this function is only needed when you are using other kinds of widgets to initiate menu changes.
| this | |
| name |
the name of the menu to switch to |