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From: roell@informatik.tu-muenchen.dbp.de (Thomas Roell)
Newsgroups: comp.unix.sysv386,comp.unix.msdos
Subject: Re: vpix under x11r4 under 386/ix 2.02
Message-ID: <4680@tuminfo1.lan.informatik.tu-muenchen.dbp.de>
Date: 1 Oct 90 09:18:00 GMT
References: <1990Sep19.070953.815@coyote.uucp> <90@usun01.UUCP>
	<tim.654339483@holly>
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Organization: Inst. fuer Informatik, Technische Univ. Muenchen, West Germany
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In-reply-to: tim@delluk.uucp's message of 26 Sep 90 08:58:03 GMT

>Not strictly true. VP/ix runs on a number of ASCII terminals which feature
>neither scancode ability, nor full PC graphics (e.g. DEC vt100). Since xterm
>is only a vt100 in disguise, you should be able to run VP/ix in an xterm
>window by saying it is a vt100 (or if you prefer, create the necessary VP/ix
>config files to drive the xterm). 

I think you are very near to the real problem. I thought, that it should be 
easy, to let vpix run under a normal xterm. If you choose a vt100 emulation,
a IBM-PC compatible fonts (yes there is one available) and hack a file for
the scan-code emulation, everything should be okay. Well, but theres a little
problem: There are two modes for vpix to run: On a terminal or one console.
If it runs on the console, vpix make some ioctl's to /dev/vt??. Some of them
must fail, if an other programm (here our X-server) owns this device already.
This would be no problem, if vpix would recognice, that it runs not on the 
console directly and instead handle the I/O like on a serial terminal.
But vpix recoginces a terminal only, if the calling shell runs on a /dev/tty??.

Perhaps Interactive could give me some hints, how to work aroud this bug...

>The advantages of xpcterm are a true PC
>font (both in terms of graphics characters and font styling). I don't know
>about scancode emulation-it's certainly reasonable to do, but I never looked.
>The function keys are emulated by ESC-1 ... on ASCII terminals.

I think xterm is much better, cause never versions of xterm can now even handle
color.

- Thomas
--
_______________________________________________________________________________
Mail:                    Thomas Roell (c/o Daniel Hernandez)
                         Inst. f. Informatik / Technische Universitaet M"unchen
                         Arcisstr. 21 / 8000 Munich 2 / Fed.Rep. of Germany
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