Dear Lazyweb: How can you find a ...

Chris Tyler's Blog

Dear Lazyweb: How can you find a process ID given a window ID? Mon, Nov 23. 2009


As far as I know, there is no way to reliably get a process ID from an X window ID for local clients (to implement Richard's View Source idea). I would love to be wrong!

Questions:

(1) Did I miss something? Can this be done now?

(2) If this can't be done now, what would it take? Could we create an X extension so that the server can supply connection info for a window, and then trace that connection info back to a specific process?

Posted by Chris Tyler in Facebook, Fedora, Fedora Planet, Mozilla Education Planet, opensource@seneca, Seneca Planet, TeachingOpenSource Planet, X Window System (X11) Comments: (4) Trackbacks: (0)

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#1 - Chris said:
2009-11-23 15:48 - (Reply)

If you don't get a useful reply, please ask on the xorg@ mailing list. You're much more likely to find the right people there.

#2 - Alexander Larsson 2009-11-23 16:42 - (Reply)

xprop -id 0x _NET_WM_PID

#3 - Chris Tyler said:
2009-11-23 20:51 - (Reply)

Thanks, Alexander, that's perfect!

-Chris

#4 - Rich 2009-11-24 13:46 - (Reply)

Yes, I can confirm that works too.


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