Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site moncol.UUCP
Path: utzoo!linus!philabs!cmcl2!seismo!harvard!talcott!panda!genrad!decvax!bellcore!allegra!ulysses!mhuxr!mhuxb!houxm!vax135!petsd!moncol!john
From: john@moncol.UUCP (John Ruschmeyer)
Newsgroups: net.info-terms
Subject: Re: Visible bells
Message-ID: <193@moncol.UUCP>
Date: Fri, 22-Feb-85 11:17:22 EST
Article-I.D.: moncol.193
Posted: Fri Feb 22 11:17:22 1985
Date-Received: Mon, 25-Feb-85 01:40:48 EST
References: <199@sphinx.UChicago.UUCP>
Organization: Monmouth College, West Long Branch, NJ 07764
Lines: 48

>From: shor@sphinx.UChicago.UUCP (Melinda Shore)
>Message-ID: <199@sphinx.UChicago.UUCP>
>
>> Does anyone know visible-bell termcap entries (for use with e.g. Emacs)
>> for any of the following terminals?
>>
>> adm5
>> adm3a+
>> tvi910+
>> tvi912
>> Data-Type XK-1
>
>I recently did a termcap for the TeleVideo TPC I, which more-or-less
>emulates a 912.  Alas, I don't think there is a way to have a visible
>bell.  The adm3a and tvi91x use onscreen embedded characters to set visual
>attributes (which is why spacing looks funny if you run nroff on text that
>has underlining in it and send it to the stdout ... ).  The attribute is
>turned off when the embedded character scrolls off the top of the screen.
>Also, the attribute is set from where the character is embedded to either
>the bottom of the screen or to the next character that appears that turns
>the attribute off.  This is different from the tvi950, where a program can
>send esc-b to the screen and reverse the whole screen, and esc-whatever to
>reset it to normal.
>

You're right about the 912/920 series. The 910+, 925 and 950 seem to be an
increasing series of terminals with compatible codes. I recall seeing a
termcap entry for the 910+, 925, and 950 which had the following entry for
visible bell:

	vb=\Eb\200\200\200\200\200\200\200\200\200\Ed

One unrelated note: the codes for several attributes (reverse video and
blinking, among others) are different from the older terminals (920/912)
and the newer ones (910+/925/950). This makes for great fun if you have
both running around.


-- 
Name:		John Ruschmeyer
US Mail:	Monmouth College, W. Long Branch, NJ 07764
Phone:		(201) 222-6600 x366
UUCP:		...!vax135!petsd!moncol!john	...!princeton!moncol!john
Silly Quote:
		"Everybody knows in the second life,
		    We all come back sooner or later.
		 As anything from a pussy cat,
		    To a man-eating alligator."