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From: csbrod@immd4.informatik.uni-erlangen.de (Claus Brod)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: requirements to use VDI
Keywords: VDI ttp appl_init
Message-ID: <1991Jun21.105122.24789@informatik.uni-erlangen.de>
Date: 21 Jun 91 10:51:22 GMT
References: <1991Jun19.112606.20682@convex.com> <1991Jun19.161901.1808@informatik.uni-erlangen.de> <1991Jun20.124043.8248@imada.ou.dk>
Organization: CSD., University of Erlangen, Germany
Lines: 28

micro@imada.ou.dk (Klaus Pedersen) writes:

>Can you give me some of these good reasons? - and why not?
>The VDI is allways running, isn't it? You can use the VDI from the AUTO folder 
>- before GEM have been installed or more correctly the AES.

I don't think it is documented that you can access the VDI from a TTP
program. It _is_ documented, though, that you may use the VDI from 
an AUTO folder program (note: maybe a reason why AUTO folder programs
must have the extension PRG!). To my knowledge, nothing has been said
from Atari about this issue, so some clarification from Allan might
inject the necessary facts into this thread.

TOS or TTP programs should use GEMDOS or BIOS in- and output routines,
nothing else. The TOS mode was meant for this, i.e. making ports
of character-oriented software easier.

>There are many programs use form_alert(), without an appl_init(), and that is
>worse isn't it? 

Certainly worse, you're right.

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Claus Brod, Am Felsenkeller 2,			Things. Take. Time.
D-8772 Marktheidenfeld, Germany		 	(Piet Hein)
csbrod@medusa.informatik.uni-erlangen.de
Claus_Brod@wue.maus.de
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