🚀 go-pugleaf

In article <1992Aug12.002320.2320@afs.com> greg@afs.com writes:
>
>You are doing an inherently problematic thing, because PopUpLists are NOT  
>controls, like TextFields and Buttons. They inherit through the Window  
>hierarchy and are actually subclasses of Menus. By definition, you cannot  
>ask a Window what Window it lives on. The Matrix lives on the PopUpList,  
>not the Window it appears to be on, so it's no help either. Even the cover  
>button is no help, because it's not directly attached to the PopUp.
>

I think NeXT should implement the concept of parent/child windows to
provide a generic solution to this problem (i.e. the PopUpList window
becomes the child of the main window). There would probably be many uses
for such a feature besides PopUpLists. Also, closing/hiding the parent
window could automatically close/hide the children.

Dave Griffiths