Why does `xprop -root _NET_ACTIVE_WINDOW` give me 0x0 for some windows?
.. and what can I do about it? When you try to get some information about the currently focused window you’re often told to just run xprop -root _NET_ACTIVE_WINDOW to get the window id of the currently active window. But sometimes – e.g. when a terminal window is on top – I get 0x0 as … Read more