Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!lll-winken!uunet!brunix!man
From: man@cs.brown.edu
Newsgroups: comp.sys.mac.programmer
Subject: How to indicate Out Of Memory
Message-ID: <9866@brunix.UUCP>
Date: 5 Jul 89 14:34:44 GMT
Sender: news@brunix.UUCP
Reply-To: man@cs.brown.edu ()
Organization: Brown University Department of Computer Science
Lines: 18

I've written a program which allocates memory using NewHandle and
SetHandleSize.  I have my own routines UtilNewHandle and
UtilSetHandleSize which call the toolbox routines and then check
MemError() to see if the call succeeded.  When I detect an
out-of-memory condition, I'd like to put up an alert box and then
abort.  I have two problems:

   1)  It seems that I sometimes run crash with an out of memory
before I get a chance to call MemError.
   2)  I crash when I try to put up an alert.  I have tried to fix
this by calling CouldAlert to make sure the resource IDs are in memory
to begin with, and allocating a static block (with NewPtr) that is the
size of a WindowRecord + 512 bytes, which I free immediately before
calling Alert, so that it can create the window.  Still no luck.  

Does anybody have any suggestions on how to handle this?

	--Mark