Convenience function for inserting a submenu menu item into menu. Combine Menu.itemNewSubmenu and Menu.insertItem for a more flexible alternative.
the position at which to insert the item
the section label, or NULL
a gio.MenuModel with the items of the submenu
2.32
Convenience function for inserting a submenu menu item into menu. Combine Menu.itemNewSubmenu and Menu.insertItem for a more flexible alternative.