Newsgroups: comp.sys.mac.programmer
Path: utzoo!utgpu!news-server.csri.toronto.edu!cressy!mts
From: mts@cressy.uucp (Martin Stanley)
Subject: `co-routine' 2 (or more) applications?
Organization: Digital Access
Date: Sun, 23 Jun 91 00:45:49 GMT
Message-ID: <1991Jun23.004549.11848@cressy.uucp>


I want to run two applications simultaneously and would like the user feel
like he/she is using one integrated application.

 In particular, I am using MCL (Lisp) and HyperCard (2.1) and
communicating via AppleEvents.  There are certain things that are more
appropriately done by the Lisp end and others by HyperCard, but I need
both on the screen at the same time.  The idea is that the user could
click on whichever window and be interacting with that application.

Is there a way to trap all mouse clicks and then switch applications as
necessary and also react to the mouse click in the `switched-to'
application?  I assume that one needs to modify the main event loop of
each application, but as I understand things, the Finder (MultiFinder)
will simply switch applications and the mouse click event will not be seen
by the newly (re-)started application.

Another potential glitch is how to get the menubar to look and act the
same while either application is in control.

Any advice/suggestions would be greatly appreciated. 
Thanks in advance.

Martin

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Martin Stanley                                  Department of Computer Science
mts@ai.toronto.edu  -or-                        University of Toronto
mts@ai.utoronto.ca                              Kings College Circle
                                                Toronto, Ontario
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