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I need some quick terminology help.
Steven alerted me a week ago that I was using "foreground" incorrectly
and what I meant was "focus". Part of my confusion is that I've only
done GUI programming using the DESQview object interface which uses
these terms differently from Presentation Manager.
Q1: I don't understand the difference between "background" and
"foreground". Is background a process that does not use the screen,
keyboard or mouse and which doesn't show up on the Workplace Shell
Switch List or the Ctrl-Esc Window List?
---- The Relish NOWKEEP.EXE and NOWSERVE.EXE programs, which are run
from STARTUP.CMD, do not show up on either list but do appear when you
run PSTAT /C.
---- ARTCHRON also shows up only with PSTAT /C but as I recall it uses
the screen/keyboard/mouse when it does pop up (artchron is running here
but I haven't seen the elephant pop up in years).
Q2: Is "focus" the term for the window whose titlebar is blue (rather
than gray) and which is receiving the keyboard and mouse activity?
Q3: Can a window pop itself to the top of the display? Can a process
pop a _different_ processes' window to the top of the display?
Q4: Can a window be popped to the top of the display (so you can see
it, i.e. "always on top") but _not_ receive "focus"?
(Steven: I've done some very limited testing with udesktop, thanks for
the heads up. From my testing it appears to be limited to the first 19
windows but I have a lot more testing to do.)
- Peter
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The Southern California OS/2 User Group
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