[openbox] [bit OT] Get focus window id?

[Sébastien]

le 2015-10-26, Ian écrivit:
>Is there a way to determine which window has the focus, from a script?
>I checked the old workhorse, wmctrl, but it doesn't seem capable of
>this.  There is the "-r :ACTIVE: " option, but it only works with the
>action subcommands, not with the listing.

xdotool to the rescue!

Returns some kind of window id (not sure what it is): 
$ xdotool getwindowfocus

Get the pid:
$ xdotool getwindowpid $(xdotool getwindowfocus)

Get the name of the program:
cat /proc/$(xdotool getwindowpid $(xdotool getwindowfocus))/comm

Hope this helps!

-- 
Sébastien