🚀 go-pugleaf

Another in my endless series of questions about obvious/obscure points of
Atari ST programming.  Is there a neat way for a program to tell whether a
menu is dropped?  I didn't think this would be an issue, because I thought
that once a menu drops the main program should be suspended as long as the
menu is down.  Doesn't work that way.  I don't really want the program I'm
working on to update the screen while a menu selection is being made---
kinda the reverse of disabling menus while you do screen updates.  I don't
even have bright but unpleasant ideas on this one: best I've come up with is
walk the rectangle list and see if the part the present application doesn't
own looks like a menu.  Not bright & not reliable.  What's the right way?
                            Steve J.