cheshirekow wrote:
Hello,
My goal is to have a program that sleeps in the background but can be
activated by the user via some "hotkey". From digging around the Xlib
manual and the Xlib O'reilly manual, I gather that the correct way to to
this is with XGrabKey. However my understanding of the process is
incorrect as a simple proof of concept does not work.
My understanding is that if I call XGrabKey with the root window as the
grab_window, and owner_events false, then whenever my hotkey is pressed
the event will be sent *only* to the root window.
>
> If I then select
KeyPress events from the root window, and then listen for X events, I
should get a key press event when the hotkey is pressed. I've pasted a
minimal example below.
What I expect is that when the program is run, regardless of what window
has focus, if Ctrl+Shift+K is pressed, my program should output "Hot key
pressed!" in the console, and then terminate.
Furthermore, it is my understanding that if the XGrabKey fails, the
default error handler will display a message, and since it does not I am
assuming that the call succeeds.
Obviously, my understanding is flawed somehow. Can anyone point me in
the right direction?
This will only work if the window manager or the window with focus doesn't
already grab the same keys. Does the example work without a window manager
running?
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