Path: utzoo!attcan!uunet!decwrl!sgi!shinobu!odin!joker.sgi.com!myoung
From: myoung@joker.sgi.com (Mark Young)
Newsgroups: comp.sys.mac.programmer
Subject: TC4.0: Odd Address/Address Error, using SetCtlAction()
Message-ID: <10752@odin.corp.sgi.com>
Date: 23 Jul 90 16:34:16 GMT
Sender: news@odin.corp.sgi.com
Reply-To: myoung@joker.asd.sgi.com (Mark Young)
Followup-To: comp.sys.mac.programmer
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 19

I've been trying to implement a scrollbar in a dialog menu.  Everything
seems to work Ok (the up/pageup/down/pagedown parts) until I try to move 
the thumb widget.  If I'm in the debugger, I get an odd address message
with the pc at 80157c (system 6.02).  If I'm not in the debugger, macsbug
gives me an address error.

when in the debugger, I can trace the action routine to the point where it
returns; the error happens as soon as I step past the return.

If I don't set the action routine, I can move the thumb just fine, but can't
get set actions for the other parts of the scrollbar.

anyone have any suggestions...please...I've already wasted many hours trying
to find a way to track this down with no luck.


thanks.

	...myoung