I've been wanting to write a program that can analyze my time spent at the computer (including the amount of time I spend on Perlmonks) by observing what I do. I figured that I could monitor which of the windows on my screen was frontmost, and get its title, or find the commandline of the process that owns the window, or analyze its open files, or something to help my program determine which of several tasks I'm working on.

I looked in CPAN and didn't find any way to interact with the window manager (I'm using X Windows under Linux, with the kdm window manager, but there is a semi-standard WM API under X).

Does anyone know how to:<bl>

  • Find which window has focus (has to be sensitive to multiple desktops, if it makes any difference)
  • Find which application (PID) owns that window </bl>

    I realize I could use XS, or my new favorite Inline, but I was hoping I wouldn't have to learn all about X to do this...

    Thanks!

    In reply to Any way to query which X Window has focus from Perl? by bikeNomad

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