The rest of your story is great, just one small
correction. SunView started
as something Sun specific but it pretty quickly became a library on top of
X11. I'm not sure if it ever worked on X10, I think it did but I'm not sure.
As I recall it, SunTools (the original Sun window system) was renamed
SunView, and the API was ported to X11 under the name XView.
Source: I've hacked up GUI interfaces for the SCM
I did at Sun in Sunview.
This would have been around 1990, is that still X10 or X11?
X11 came out in 1987. I The first version I remember using is X11R3,
which came out in 1988.
See
https://www.x.org/wiki/X11R1 (and .../X11R2 etc)
-- Richard
--
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.