| Title: | DECWINDOWS 26-JAN-89 to 29-NOV-90 |
| Notice: | See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit |
| Moderator: | STAR::VATNE |
| Created: | Mon Oct 30 1989 |
| Last Modified: | Mon Dec 31 1990 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 3726 |
| Total number of notes: | 19516 |
Does anyone know if we plan to support VT640 emulation under DECwindows
at any time?
One of our third-party software vendors is asking about VT640 and TEK
4010 emulation. I found the info on 1040 emulation in earlier notes
(specifically 1827 and 3226). But I couldn't find anything on the
VT640. Any help will be appreciated.
Regards,
Aram Falsafi
LDP Tech. Support
P.S. If you have info. that is too sensitive to be placed in a public
notesfile, please send me mail to DUGGAN::FALSAFI, and indicate what
(if any) of that info I can share with outsiders under nondisclosure.
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 3304.1 | HANNAH::MESSENGER | Bob Messenger | Tue Sep 04 1990 20:29 | 5 | |
Re: .0 What's a VT640? -- Bob | |||||
| 3304.2 | VT640 "RetroGraphics" Product from DEI | HANNAH::HAMILTON | It's d�j� vu all over again | Fri Sep 07 1990 11:00 | 20 |
The VT640 was a third-party add-on product that enhanced a VT100
terminal with Tektronix-4014 compatible graphics capabilities.
It was made between (approx) 1980 and 1984 by Digital Engineering,
Incorporated, of Sacramento, CA. They sold thousands of these
kits, which replaced the CRT jug with a high-persistence green
screen, and added a CPU logic board that provided a single plane
of bitmap graphics at a resolution of 640x480 (interlaced).
As to whether DECterm will ultimately support the Tektronix-4010
or 4014 modes, I don't know. But it is very unlikely that
if it did, that it would also emulate the VT640's private
escape sequences that changed terminal modes (e.g. ESC"0g takes
you from VT100 to TEK). So the answer to the base question is
"no". If a customer's application is written so as to manipulate
a VT640's modes, then the application will have to be modified
to be useful with DECterm or xterm (which talks Tek 4014).
The more pertainent question is whether DECterm will
ever do Tek graphics.
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| 3304.3 | STAR::KLEINSORGE | Fred Kleinsorge, VMS Development | Mon Sep 17 1990 14:19 | 14 | |
A question I have is: How can we provide solutions to customers with
specific needs - such as arbitrary terminal emulation.
It would seem to me (having written some of the original code) that
the basic terminal emulator code should be able to be offered packaged
as a sharable library image. By providing a external interface to the
logic, both DEC and third parties could implement value-added
emulations - and provide the "standard" VT300 logic without needing to
write it from scratch. The VT640 could be implemented pretty easily
provided the proper hooks.
_Fred - (who must be having halucinations...)
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