Date: Tue, 1 Jul 1997 00:29:03 -0600 (MDT) From: Wes Peters <softweyr@xmission.com> To: Gianmarco Giovannelli <gmarco@giovannelli.it> Cc: chat@freebsd.org Subject: Re: touch screens & FreeBSD Message-ID: <199707010629.AAA26626@obie.softweyr.ml.org> In-Reply-To: <3.0.2.32.19970630093930.00a83350@giovannelli.it> References: <3.0.2.32.19970628155637.006c07c4@giovannelli.it> <199706300550.XAA08449@obie.softweyr.ml.org> <3.0.2.32.19970630093930.00a83350@giovannelli.it>
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Gianmarco Giovannelli writes:
> Ok thanks, but I think I am so familiar with the WWW that I find the
> search engines useless. :-)
Funny, I've been using the web since it was text-only, and I find I use
the search engines nearly every day!
> Btw without joking thanks for your reply , I'll help him better next
> time... I looked for experiences with touch screens too, so I
> thought my mail in questions was not out of topics.
I've used touch screens before, but we had DOS PCs front-ending the
application. Each PC was embedded in a console and controlled two large
screens (54" diagonal in the small briefing rooms, and 100" diagonal in
the large auditorium), four smaller monitors (either 27" or 37"), two
SGI workstations, and an amazing variety of video sources, including a
digital camera and professional beta video tape, through a complicated
video switch. The switch could put any source on any destination, or
split the large monitors into four windows and display four sources
simultaneously on each large monitor.
The touch screen was the weakest link in the entire system. The program
that was supposed to calibrate the touch screen failed about 75% of the
time, and if it didn't fail, the "registration" on the touch screen
would wander enough that by the end of a 1-hour briefing the user was
guessing what to touch to get the screen he wanted.
I hope your friend has better luck. The site I dug up *did* offer UNIX
drivers; if they are willing to give out the source, it might be fairly
easy to adapt them to FreeBSD. They might be more willing to give your
friend the source if he offers to contribute the results to the FreeBSD
project, or back to the manufacturer. ;^)
--
"Where am I, and what am I doing in this handbasket?"
Wes Peters Softweyr LLC
http://www.xmission.com/~softweyr softweyr@xmission.com
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