Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!nucsrl!accuvax.nwu.edu!bob
From: bob@accuvax.nwu.edu (Bob Hablutzel)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Ptrs, Handles, & Stuff
Message-ID: <10050077@accuvax.nwu.edu>
Date: 21 Feb 89 00:34:17 GMT
References: <7208@spool.cs.wisc.edu>
Organization: Northwestern U, Evanston IL, USA
Lines: 15

> Here's a simple question for you.  What are the general rules of when to
> dispose a ptr/handle and when not to (assuming I'm finished with it).
> Sometimes I would dispose of a ptr/handle that I thought I was through with
> and then crash.

> Thanks for the info.

I'd be willing to bet that if you think you are done with a handle, you are
done with a handle (or pointer). But remember - having disposed of a handle/
pointer subjects the heap to a shake-up. Make sure that any handles you are 
still using are properly locked if derefed, and deref them again if not.

The only exception I know if are system resources, which you don't dispose.

Bob Hablutzel	Wildwood Software	BOB@NUACC.ACNS.NWU.EDU