Path: utzoo!attcan!uunet!mcsun!unido!gmdzi!kloppen
From: kloppen@gmdzi.UUCP (Jelske Kloppenburg)
Newsgroups: comp.sys.atari.st
Subject: Re: Physbase vs Logbase
Message-ID: <1865@gmdzi.UUCP>
Date: 12 Jan 90 07:29:26 GMT
References: <19900107151543.2.JRD@CORD.SCRC.Symbolics.COM>
Organization: GMD, Sankt Augustin, F. R. Germany
Lines: 16

jrd@STONY-BROOK.SCRC.SYMBOLICS.COM (John R. Dunning) writes:

>Can anyone tell me what's the difference between Physbase() and
>Logbase()?  When can I expect them to be the same/different?  

Normally physbase and logbase point to the same memory. If You
set one of them to another screen memory then what you see is
shown from Physbase() and what You draw (VDI etc.) is drawn to
Logbase(). That can be used for animation: Show one screen, draw
the next image to another, then flip the Screens.

greetings, j.k.

      Kloppenburg@kmx.gmd.dbp.de
UUCP: kloppen@gmdzi
                                  In real life: Jelske Kloppenburg