Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!mailrus!tut.cis.ohio-state.edu!bgsuvax!rudd
From: rudd@bgsuvax.UUCP (Michael Rudd)
Newsgroups: comp.sys.mac.programmer
Subject: Memory Map of Screen -- HELP
Keywords: Pixel, Screen, Graphics
Message-ID: <2396@bgsuvax.UUCP>
Date: 16 Jun 88 19:12:35 GMT
Organization: Bowling Green State University B.G., Oh.
Lines: 20


	I'm looking for some information on how the Macintosh 
	does it's screen mapping.

	I am writing programs using Borland's Turbo Pascal and am trying
	to simply light one pixel on the screen.

	Currently the only way I seem to be able to do this is by saying
	
		MoveTo(x,y);
		LineTo(x,y);

	because there isn't a toolbox routine that I can find to light
	one pixel. This becomes slow if many pixels are going to be
	lit.  What I would like to know is if there is some way I can
	access the screen map and turn a pixel on myself without using
	a toolbox routine.

	Any suggestions would be greatly appreciated.

	rudd@research1.bgsu.edu