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- From: jmunkki@vipunen.hut.fi (Juri Munkki)
- Newsgroups: comp.sys.mac.programmer
- Subject: Re: QuickDraw
- Message-ID: <1993Jan1.042143.12852@nntp.hut.fi>
- Date: 1 Jan 93 04:21:43 GMT
- References: <1992Dec31.012947.10273@wuecl.wustl.edu>
- Sender: usenet@nntp.hut.fi (Usenet pseudouser id)
- Reply-To: jmunkki@vipunen.hut.fi (Juri Munkki)
- Organization: Helsinki University of Technology
- Lines: 16
- Nntp-Posting-Host: vipunen.hut.fi
-
- In article <1992Dec31.012947.10273@wuecl.wustl.edu> ppc1@cec2.wustl.edu (Peter Pui Tak Chiu) writes:
- >hi...
- >plane while i am showing a frame and then when the new frame is done, i set
- >the viewing rectangle to the newly drawn frame and draw the next frame
- >somewhere else.
- >
-
- Things do not work this way in QuickDraw. The way you do something like this
- in QuickDraw is by creating an offscreen bitmap, pixmap or gworld. Instead
- of thinking in terms of one huge page, think of various small pieces of paper,
- some of which are visible (the screen bitmap[s]/pixmap[s]) and some of which
- you can only copy to other places (like the screen).
-
- --
- Juri Munkki Windsurf: fast sailing
- jmunkki@hut.fi Macintosh: fast software
-