On Thu, 7 Jan 2021 04:07:05 +0000, The Natural Philosopher
 declaimed the following:

>Oh. reverse for me. couldn't write an X window program to save my life.
>Quite happy to design stuff in html and javascript tho

 I did X-Window some 30 years ago (DECWindows variant). I'm talking base
X-Toolkit level, no such thing as KDE/GTK/wxWindow....

 Even worse, I had to have the X-Window code invoke Graphical Kernel
System code for the actual data display (I needed a Display List capability
as the application was replacing a Ramtek 9300 graphics engine, AND the
controlling application(s) were run as separate processes -- one would be
responsible for drawing the axes&labels, one would draw colored boxes based
upon data read from a large file, one handled creation of rubber band
regions for filtering said data... And screen refreshes had to be possible
without rerunning the original data processes (could take 15-30 minutes
just to read the data file for the colored boxes, and among refresh events
was "turning layers on/off" -- like the axes could be hidden, the rubber
band triggered a refresh each time a line segment was confirmed).


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/

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