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From: shatara@univse.dec.com (Chris Shatara, Chelmsford, Ma.)
Newsgroups: comp.sys.apple
Subject: Help with //gs Memory Manager commands
Message-ID: <8810311658.AA01121@decwrl.dec.com>
Date: 31 Oct 88 16:58:35 GMT
Organization: Digital Equipment Corporation
Lines: 35

I am having a problem with my understanding of the UnlockAll and DisposeAll
commands of the Memory manager. 

I have a TML Pascal program where I form a binary tree of Handles (Actualy
pointers made from LOCKED handles).  This is in the body of a program I 
created for generating CrossReference listings of my programs.

Memory for each identifier is allocated using the NewHandle command 
with the Aux field of the Memory ID set to $1.  This is accomplished via

	XrefMemId := BitOr(MyMemoryId,$0100);

	( MyMemoryId is the master ID returned from the memory mgr)

Now my question......

    When I'm through printing out the cross reference listing, I want
    to deallocate and free up the space which was locked for each of the 
    identifiers in my binary tree.

    I did the following:

    	UnLockAll(XrefMemID)	{unlock all pointer with this ID}
    	DisposeAll(XrefMemID)	{free up the memory space..I think}

    Invoking FreeMem before and after the above commands shows that I
    am not gaining back memory that was allocated and in fact I'm losing
    more.

Am I interpreting these command wrongly?  I tried PurgeAll(XrefMemID) in
place of DisposeAll and had the same results?



Regards, Chris Shatara