[Info-vax] Change Mouse Pointer Color
Jairo Alves
jairo.ptbr at gmail.com
Mon Dec 3 13:17:34 EST 2018
> X Window client apps can run locally and can connect locally to an X
> Window Server on a local display, or can run locally and connect to a X
> Window server on a remote client. The X client is the app and its use
> of X libraries and frameworks, and the X server is the hunk of X code
> that managing the X display.
It's much clearer now, thanks.
>
> You're going to have to be slightly more specific about what you mean
> by a "regular app" here, as regular apps apps such as LSEDIT, NOTES,
I meant 'local' as an app that the operator can run in a standalone
machine. But reading your explanation above, I see it could still be
an X app, because both ends could potentially run in the same box,
just like a jupyter notebook can (I know, it's a apples to oranges
analogy, but ok).
> character cell terminal session remotely on an X server. You're also
> going to want to describe what the app display and display software and
> display hardware might involve in a little more detail, too.
As it doesn't change in any app, aside from the desktop, I think it
may not be app related, but the app in question is a full graphical
app, the ones that are used in production plants. (similar to InTouch,
for example)
> VSI has not particularly discussed OpenVMS updates for DECwindows and
> X, and has specifically discussed that they're not targeting
> workstations.
Interesting to know that. Most of our boxes are rx2660 being used as
workstations.
>
> I'd expect that most new GUIs are HTTPS-based using HTML and
> JavaScript, or more recently using JavaScript and WebAssembly more
> directly, or servers configured to communicate using REST or ilk in
> conjunction with a local client app running on the target client
> device. I'd expect these apps to be sending alerts and notifications
Industrial Automation is a field with many loong product cycles,
everything tends to be kept running for as long as possible.
Also, to this date it's not uncommon to run Windows 2000 or XP on
many sites, depending on the application needed.
> been a push for migration. Yeah, SCADA installs have been around for a
> very long time, and which means there are numerous existing installs
> that won't get upgraded until they get replaced, too.
The specific system we have is basically unchanged in 20 years. We still
get updates once a year or so, but they are mostly error corrections
and almost never new features.
It's gonna be interesting to go through the x86 port phase.
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