Ricky wrote:
> Hi
>
> I want to see the caps lock's status more easily, how to display caps
> lock status in status line?
> It seems that vim don't support.
You can query the status of the LEDs (LED caps lock among other
things) with the Linux command "xset q".
I tried the following but it is not fully satisfactory. Perhaps someone
can improve on it:
func! ShowCapsLockStatus()
let xs = system('xset q')
let mask = matchstr(xs, 'LED mask:\s*\zs\d\+')
return ((mask % 2) == 0) ? 'off' : 'on'
endfunction
Then you can add something like this in your status line:
set statusline+=%{ShowCapsLockStatus()} " show caps lock status
However, it is far from being ideal:
- the statusline is not refreshed immediately when pressing Caps-Lock
(you need to move the cursor for example to see it being refreshed)
There is no asynchronous event to notify when Caps-Lock key was
pressed as far as I know.
- ShowCapsLockStatus() messes up display in xterm terminal
when I move the cursor with the up, down, left, right keys. I see some
^[OA or ^[OB showing up on the screen. Why?
Pressing CTRL-L or :redr! makes them disappear.
I don't see that in gvim.
- And of course "xset q" will only work on Linux
Regards
-- Dominique
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