Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!uflorida!gatech!udel!princeton!julius!rla
From: rla@julius.uucp (Richard L. Altman)
Newsgroups: comp.sys.mac.programmer
Subject: flicker-free text
Keywords: flicker-free, text, rapid display
Message-ID: <18493@princeton.Princeton.EDU>
Date: 1 Aug 89 20:00:25 GMT
Sender: news@princeton.Princeton.EDU
Reply-To: rla@princeton.Princeton.EDU.UUCP (Richard L. Altman)
Distribution: usa
Organization: Dept. of Computer Science, Princeton University
Lines: 21


	I am working on a program that diplays characters to the screen 
at a very rapid pace.  For lack of knowing a better way to write 
quickly to the screen, I deactiavted the text, and SetSelect-ed and 
TEPaste-d everything instead of calling TEUpdate every time the
screen had to be changed.  The only bad thing about this is that there
is a very annoying screen flicker that occurs periodically as the 
screen changes.  I guess that it doesn't refresh during the 
vertical retrace as it should, but A) I am not very familiar w/the 
VerticalRetrace functions, and B) I hope deep in my mind that there 
is a better way to achieve my goal.   Could someone please clue me
in to a better toolbox call or post (or E-mail) some good code as an
example of the Vertical Retrace functions.  Thanks.

					Richard Altman

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Disclaimer - don't blame me for something I know nothing about...

internet: rla@princeton.edu
csnet:    justone@cs.brandeis.edu