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From: stew@endor.harvard.edu (Stew Rubenstein)
Newsgroups: comp.sys.mac
Subject: Re: How do you create an offscreen bitmap > screen.bounds
Message-ID: <2734@husc6.UUCP>
Date: Sun, 23-Aug-87 17:28:56 EDT
Article-I.D.: husc6.2734
Posted: Sun Aug 23 17:28:56 1987
Date-Received: Mon, 24-Aug-87 00:06:02 EDT
References: <11505@decwrl.DEC.COM>
Sender: news@husc6.UUCP
Reply-To: stew@endor.UUCP (Stew Rubenstein)
Organization: Aiken Computation Lab Harvard, Cambridge, MA
Lines: 12

In article <11505@decwrl.DEC.COM> cassidy@memory.dec.com (SHR1-3/O11..DTN 237-3413) writes:
>Can anyone tell me how to draw into an offscreen bit map that is larger
>than screen.bounds?  The default VisRgn is screen.bounds, and DrawPicture
>clips to this region.  Any way to change the VisRgn legally?  Thanks.

You can do anything you want to a port with an offscreen bitmap.
Just RectRgn(offScreenPort->visRgn, &offScreenPort.portRect) and
same for clipRgn.
Stew Rubenstein
Cambridge Scientific Computing, Inc.
UUCPnet:    seismo!harvard!rubenstein            CompuServe: 76525,421
Internet:   rubenstein@harvard.harvard.edu       MCIMail:    CSC