Returns a list of the items in the menu, popup menu, or menu bar. The
order of the items in the returned list corresponds to the order as
the user sees them in the menu or menu bar.
(send a-menu-item-container get-items)->list of menu-item<%> objects
![[previous]](../icons/left.gif){kind=icon}
![[up]](../icons/up.gif){kind=icon}
![[next]](../icons/right.gif){kind=icon}
![[index]](../icons/index.gif){kind=icon}