Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!nsc!taux01!cyosta
From: cyosta@taux01.UUCP ( Yossie Silverman )
Newsgroups: comp.sys.mac.programmer
Subject: Re: Ptrs, Handles, & Stuff
Message-ID: <1152@taux01.UUCP>
Date: 22 Feb 89 11:53:47 GMT
Reply-To: cyosta%taux01@nsc.COM ( Yossie Silverman )
Distribution: usa
Organization: National Semiconductor (IC) Ltd, Israel
Lines: 14

There is a question that has been bugging me since I started programming
the mac.  I have never been bitten so I never bothered to find out the
truth before.  The question is:  When I do a _NewHandle or _NewPtr, is
the result (1) locked (2) unpurgable ?  Further, the various size change
routines, do they modify either of these attributes?  My general stratagy
is to do _NewHandle's and _Lock just before a 'with' statement and _UnLock
just after it.  I assume that the handle is unpurgable, so far it has
worked.  The book says very little about the defaults, infact, the promotion
IM says NOTHING about the defaults...
-- 
Yossie Silverman                                   What did the Caspian sea?
National Semiconductor Ltd. (Israel)				- Saki
UUCP: cyosta%taux01@nsc.COM
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