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Article #1716

TextBlt

#1716
From: Brian Totty
Date: Sat, 06 Sep 1986 22:49
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	As for my earlier message as why my TextBlt did not work, I may
have a clue.  It turns out that the problem (I think) was in the size of the
raster form width.  I was using a form with a width of 4096 bytes, so maybe
a signed word value may have had problems.  I tried using a form with a much
smaller width (the system font), and it worked fine.  So, then I tried
a form width of 2048.  Nope, still didn't work.  Hmmm...  

	So, right now, I take the character I want, blit it from the big
form into a temporary form, and then TextBlt it.  This works!  It is 
interesting to note that normal GEM raster ops work fine with raster form
widths of 4096 bytes.  I wish I had some documentation that explained this
for sure...

	Also, I would like to thank Jwahar Bammi for his replies to my
TextBlt questions.  All of my letters got bounced back from case, so I
couldn't thank him personally.

	So, if anyone has any definitive ideas about this TextBlt/form width
thing, I would love to hear about it.

						--- Bri

						...!mit-eddie!bri
						uc.bri@deep-thought.mit.edu

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!caip!nike!ucbcad!ucbvax!EDDIE.MIT.EDU!UC.BRI%DEEP-THOUGHT
From: UC.BRI%DEEP-THOUGHT@EDDIE.MIT.EDU (Brian Totty)
Newsgroups: net.micro.atari16
Subject: TextBlt
Message-ID: <12236869067.34.UC.BRI@DEEP-THOUGHT.MIT.EDU>
Date: Sat, 6-Sep-86 18:49:24 EDT
Article-I.D.: DEEP-THO.12236869067.34.UC.BRI
Posted: Sat Sep  6 18:49:24 1986
Date-Received: Sun, 7-Sep-86 04:09:25 EDT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
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