The Menu widget supports both pull-down and pop-up menus.
When placed under a cascade button, menu is a pull-down menu and when placed under a drawing area it is a pop-up menu. Any number of pop-up menus can be placed under a drawing area. It is up to the application to know when to use them. In X-Designer, selecting the menu widget in the hierarchy will decide which pop-up menu is activated in the design window.
Menus are examples of RowColumn widgets and share the same resource panel. The widgets that can be added to menus are: Label, Push Button, Cascade Button and Separator.
In Motif 2.1, the internal mechanisms which arrange to popup a menu have been extended, so that it is now possible for X-Designer to allow popup menus to be parented off any Widget (but not Gadget), and not just off the XmDrawingArea.
For more information, consult XmCreatePopupMenu(3X) and XmCreatePulldownMenu(3X) in the OSF/Motif Programmer's Reference.
See also: