Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!apple!casseres@apple.com
From: casseres@apple.com (David Casseres)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Basic Printing - Help
Message-ID: <14027@goofy.Apple.COM>
Date: 12 Jun 91 16:46:51 GMT
References: <coxr.676674459@piccolo.ecn.purdue.edu>
Sender: usenet@Apple.COM
Organization: Apple Computer
Lines: 17

In article <coxr.676674459@piccolo.ecn.purdue.edu>, coxr@piccolo.ecn.purdue.edu (Richard L Cox) writes:
> 
> PrintStuff()
> {
> 	TPPrPort	myPrPort;
> 	THPrint		prRecHdl;
> 
> 	PrOpen();
> 	PrintDefault(prRecHdl);

There's your problem.  You must allocate storage for the handle before
passing it to PrintDefault.  Otherwise, it's a garbage value which points
to something somewhere, which in turn points to some memory somewhere,
which PrintDefault will trash by filling it with default print record
values.  Results are, as they say, unpredictable.

David Casseres