* * * * *

          I love it when abstractions are too abstract to be useful

I recently found [1] an annoying aspect of Xlib [2]—it's hard to find
documentation about what keys affect the state field of the keyboard event.
It's obvious that the shift keys on the keyboard will set ShiftMask, the
control key will set ControlMask, and the CapsLock key will set LockMask
(when I would expect it to set ShiftMask since it's just locking the shift
keys to “on”), but there's little to say what keys set the Mod1Mask,
Mod2Mask, Mod3Mask, Mod4Mask and Mod5Mask.

This is problematic, because I do need to check for keyboard events and this
threw me for a loop—why are none of the keys working? Well, that's because my
virtual Linux server on the Mac sets the NumLock key, which causes the X
server to then set the Mod2Mask for all keyboard events and I wasn't
expecting that.

Sigh.

[1] gopher://gopher.conman.org/0Phlog:2024/04/04.1
[2] https://en.wikipedia.org/wiki/Xlib

Email author at [email protected]

You are viewing proxied material from gopher.conman.org. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.