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From: drummond@nbs-amrf.UUCP (Brian Drummond)
Newsgroups: net.micro.mac
Subject: Re: GrafPort Scrolling Problems
Message-ID: <479@nbs-amrf.UUCP>
Date: Fri, 22-Mar-85 15:31:47 EST
Article-I.D.: nbs-amrf.479
Posted: Fri Mar 22 15:31:47 1985
Date-Received: Tue, 26-Mar-85 05:30:09 EST
References: <170@analog.UUCP>
Organization: National Bureau of Standards
Lines: 17

As near as I understand it, your first proposed solution to the problem
is the way to go about scrolling stuff around in a GrafPort.  I'll admit
it does get messy, but since you're only drawing the controls in a few
places (in response to update events or mouse down events in the grow box,
for example), I do't believe it's an unmanageable problem.

The current software suppliment (2/85) contains a sample program called
SCROLL which has the source (in what they call a 'vanilla version of C')
demonstrating scrolling a TE field and some graphics.  It shows how to
scroll both/either in the horizontal/vertical directions, and as far as it
goes, it's an educational experience...

	...my first submission, please forgive any etiquette errors...
			Chuck McMath (using a friend's account)
			Department of EE & CS
			George Washington University
			Wash, D.C. 20052/	202-676-5923