There apears to be no printscreen down event

there is only the up event. And its great and all except that when window goes out of focus every key gets an upevent! I try to catch “print_screen-up-time” event but that’s not working!

** EDIT **

It was time-print_screen-up silly me. But there is still no down event, why is that?

Of course, it’s used by your system. So, any hotkey used by the system doesn’t propagate to any app. Same case for ctrl-alt-del.
That’s why on Ubuntu, I altered it to ctrl-printscr to capture the screen, so I can use bare printscr for something else.