Labels:book | bulletin board | earth | plant | poster | reckoner | sky OCR: 1II-70 Mops Predefined Classes hit: -- Handles a click on the pop-up box Your action handler for the pop-up box (which' Is an item in the dialog) should include sending hit to the menu 1s well as hand ling details such to as the execute hiliting your of the handler pop -up for the box, hit: selected sends menu exec: super, item. When your handier gets called, the previ ously selected item# (whose text was in the pop- -up box before) will still be in the item# ivar, while the new one will be on the stack This will be useful if you need to know if f the item# being changed or not Error messages "You must send me a new: message first An operation was attempted before the menu was created with the Toolbox Mbar MBar is used to create single system object, MenuBar It maintains the list of menu o ...
