Sets or unsets the "submenu" link of menu_item to submenu. If submenu is non-NULL, it is linked to. If it is NULL then the link is unset. The effect of having one menu appear as a submenu of another is exactly as it sounds. Since 2.32
a GMenuModel, or NULL. [allow-none]
See Implementation
Sets or unsets the "submenu" link of menu_item to submenu. If submenu is non-NULL, it is linked to. If it is NULL then the link is unset. The effect of having one menu appear as a submenu of another is exactly as it sounds. Since 2.32