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From: siegel@endor.uucp (Rich Siegel)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Problem: QuickDraw doesn't (offscreen drawing)
Message-ID: <5348@husc6.harvard.edu>
Date: 16 Jan 91 01:38:44 GMT
References: <27924.279351b1@kuhub.cc.ukans.edu>
Sender: news@husc6.harvard.edu
Reply-To: siegel@endor.UUCP (Rich Siegel)
Organization: Symantec Language Products Group
Lines: 21

In article <27924.279351b1@kuhub.cc.ukans.edu> mlab2@kuhub.cc.ukans.edu writes:
>I have a number of offscreen bitmaps going in LSP.
>Now for something really strange...
>
>One of my offscreen maps is called offVirginPort.  So, calling
>SetPort(offVirginPort); and then framing and filling rectangles, should give me

	Is OffVirginPort a GrafPtr or a GrafPort? If it's a GrafPtr, is it
actually the address of a GrafPort, or is it just a variable you declared?
Also, for the drawing to happen offscreen, you'll need to allocate an offscreen
bitmap of the size you want, and SetPortBits to it. (I usually do this with
an existing port like a window, but you may not have that luxury.)

R.



 Rich Siegel	Symantec Languages Group  Internet: siegel@endor.harvard.edu

"...she's dressed in yellow, she says 'Hello, come sit next to me, you
fine fellow..."