Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!apple!vsi1!hsv3!jls
From: jls@hsv3.UUCP (James Seidman)
Newsgroups: comp.windows.ms.programmer
Subject: Re: BitBlt question
Message-ID: <6824@hsv3.UUCP>
Date: 25 Jan 91 17:16:18 GMT
References: <703@anaxagoras.ils.nwu.edu>
Reply-To: jls@hsv3.UUCP (James Seidman)
Distribution: usa
Organization: Video Seven / Headland Technology
Lines: 17

In article <703@anaxagoras.ils.nwu.edu> welter@ils.nwu.edu (Pete Welter) writes:
>I am trying to display a large colored bitmap using BitBlt.
>When the bitmap is drawn, it appears rather slowly in a series
>of (about 4 or 5) horizontal swipes...
>My question is: Is there any reason why BitBlt would redraw in
>these horizontal strips?

The BitBlt functionality is implemented by the video display driver, not
the GDI.  Are you using the standard VGA driver?  If not, you might try
switching to it and seeing if the problem goes away.  (I've never seen
the symptoms you're describing.)

-- 
Jim Seidman (Drax), the accidental engineer.
"It doesn't have to work... they'll be paralyzed just from laughing at me."
							- Dr. Who, _Shada_
UUCP: ames!vsi1!hsv3!jls	         INTERNET: hsv3.UUCP!jls@apple.com