Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!dewey.soe.berkeley.edu!oster
From: oster@dewey.soe.berkeley.edu (David Phillip Oster)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Stupid QuickDraw question
Message-ID: <28089@ucbvax.BERKELEY.EDU>
Date: 19 Feb 89 05:52:08 GMT
References: <71976CXT105@PSUVM> <3695@ucdavis.ucdavis.edu>
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: oster@dewey.soe.berkeley.edu.UUCP (David Phillip Oster)
Organization: School of Education, UC-Berkeley
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The problem with drawing a single point is that quickdraw does some fairly
complex clipping for you. If you need to draw lots of single points, the
best way is to modify an off-screen bitmap via direct bit-twiddling, then
CopyBits the modified area to the screen. This lets quickdraw do its
clipping more sparingly.