Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!sdd.hp.com!uakari.primate.wisc.edu!bin
From: bin@primate.wisc.edu (Brain in Neutral)
Newsgroups: comp.sys.mac.programmer
Subject: Tech Note 202 (Resetting the Event Mask) question
Message-ID: <3687@uakari.primate.wisc.edu>
Date: 4 Jan 91 16:47:13 GMT
Organization: Cafe Limbo
Lines: 18

Tech Note 202 (Resetting the Event Mask) says the event mask should be
saved/restored at the beginning/end of a program that modifies it, e.g.,

	# define SysEvtMask 0x0144

	saveMask = * ((Integer *) SysEvtMask;
	...
	SetEventMask (newMask);
	...
	* ((Integer *) SysEvtMask = saveMask

My question: why not just reset at the end with SetEventMask (saveMask)?
Is there some difference between that and setting the low memory global
directly?

-- 
Paul DuBois
dubois@primate.wisc.edu