Path: utzoo!attcan!uunet!cs.utexas.edu!usc!bloom-beacon!ford-scf14!carol
From: carol@ford-scf14 (Carol Toomer-Keay)
Newsgroups: comp.windows.x
Subject: (none)
Message-ID: <8907181600.AA02895@ford-scf14.sun.com>
Date: 18 Jul 89 16:00:28 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 36

Hi,

I'm developing a user interface for a flight simulator and need
a popup menu with additional cascading menus.  Let me explain
what I mean by cascading menus in case they're called something
else in the real world!  The idea is to popup a menu and allow the
user to drag the mouse down the menu to make a selection.  Moving
the mouse to the far right edge of the last menu selection will
cause another menu to popup (a submenu).  During the mouse motion,
the user continues to hold down the button until a selection is 
made.  I have been trying to get this second menu to popup just by
entering the last menu selection.  It briefly appears on the screen
and then the program crashes.  The first popup menu seems to be
working.  I don't have access to any toolkits on the machine I'm
using (a Megatek workstation) so the code is being written using
XLib.

Does anyone have an XLib program that successfully produces these
menus?  I'd like one that will allow the user to easily customize the
menus if possible.  But I'll take anything that works!

Also, there is a bug in the code that produces the first popup menu.
If the user presses the button and waits for the menu to appear on 
the screen, all is well.  If the button is released before the menu
is completely drawn, the program crashes.  I've asked a few people
about this and was told it could be a hardware problem and/or a 
software problem.  Any ideas??

Many Thanks,

Carol
carol@scf1.fac.ford.com

  to work, perchance to compile, ay there's the rub...
  whether tis nobler to program the ups and downs of XLib,
  or take a mouse against a C of icons and by deleting, end them!