xdotool - how to get window id given its X and Y?

Question

I can get X and Y of the active window with xdotool getwindowgeometry --shell $(xdotool getactivewindow). How do I do a backwards process - find window id given its X and Y? I'm only interested in the topmost window, not the one that may be hidden underneath the one on top.

Do you want the id of the active window or of the one at a particular position irrespective of whether it is active? — terdon, Jan 18 '15 at 18:08

score 6 · Accepted Answer · answered Jan 18 '15 at 17:35

I've figured it out myself:

xdotool mousemove 500 100 getmouselocation --shell mousemove restore

This briefly moves the mouse to the specified position (x=500, y=100 in this example), prints WINDOW which is the windowid on top, then moves the mouse back.

This is probably not the intended usage of mousemove, but I could not find any better way to do what I wanted.

xdotool - how to get window id given its X and Y?

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