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Development item: NumLock
- From: "Harold Hunt" <huntharo at msu dot edu>
- To: "cygx" <cygwin-xfree at cygwin dot com>
- Date: Fri, 14 Jun 2002 09:25:24 -0400
- Subject: Development item: NumLock
For anyone looking for something to do:
Take a look at how we are messing up the handling of NumLock. For a simple
test case, install the lesstif package via Cygwin's setup.exe, run mwm.exe
as your window manager, make sure NumLock is on, then try to move a MWM
managed window. The window won't budge. Turn NumLock off and the window
can move freely.
It may be incorrect to treat NumLock as a 'modifier key', see
xc/programs/Xserver/hw/xwin/winkeybd.c/winGetKeyMappings (), but not
treating NumLock as a modifier key causes the NumLock key to have no effect
on whether the numerical keypad gives you numbers (NumLock on behavior) or
arrows (NumLock off behavior). I think that both states of NumLock give you
arrows in that case.
For clues you can take a look at other servers, such as XDarwin over in
xc/programs/Xserver/hw/darwin/darwinKeyboard.c. Notice that they use
modifier masks LockMask (CapsLock), ShiftMask, ControlMask, AltMask,
MetaMask and FunctionMask. But they don't use NumLockMask.
What gives? Is NumLock a modifier key or not? If not, why doesn't it do
anything in Cygwin/XFree86 when we don't treat it as a modifier?
Hopefully that provides enough food for thought.
Good luck,
Harold