Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!yale!cmcl2!uupsi!sunic!dkuug!imada!micro
From: micro@imada.dk (Klaus Pedersen)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Can VDI draw on a virtual screen?
Message-ID: <1991Mar5.162841.20657@imada.dk>
Date: 5 Mar 91 16:28:41 GMT
References: <1991Mar3.233757.10358@imada.dk>
Sender: news@imada.dk (USENET News System)
Organization: Dept. of Math. & Computer Science, Odense University, Denmark
Lines: 15

micro@imada.dk (Klaus Pedersen) writes:

>Is it possible to use VDI operations to draw on a virtual screen? Possibly
>on a screen which is bigger than the real screen.

Yes, writing on a virtual screen is easy (by setting the logical screen to
your buffer - with 'Setscreen').
But is it possible to change the size of the logical screen? 
  - Is it possible to tell the VDI about a new size (x,y,planes) ?

I have a nightmare about a user with a video controller with true color at
1024x1024 (thats 3 Mbytes)!!! You need to allocate all 3 Mb before
setting the logical screen!! - can this be true??

-Klaus