Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!ll-xn!mit-eddie!uw-beaver!tektronix!sequent!mntgfx!tomc
From: tomc@mntgfx.mentor.com (Tom Carstensen)
Newsgroups: comp.sys.mac.programmer
Subject: Patching Trap calling under Multifinder
Keywords: patch trap multifinder
Message-ID: <1988Jun15.105407.307@mntgfx.mentor.com>
Date: 15 Jun 88 17:54:03 GMT
Organization: Mentor Graphics Corporation, Beaverton Oregon
Lines: 23

What are the rules for patching trap calls under
Multifinder?

What I'm trying to do is patch _DrawMenuBar, to
call a routine that simply sets a global flag, and then
calls the actual _DrawMenuBar.

This works great NOT using Multifinder, but BOOM/Crash
under Multifinder.

I tried restoring/installing the patch on suspend/resume
events, but it still crashed.

What can and can't I do??

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: Tom Carstensen         Usenet: tomc@mntgfx.MENTOR.COM      :
: Mentor Graphics                Delphi: CARSTENSEN          :
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