Detect current virtual desktop

[Maciej Bliziński]

Hello Pythonists,

I'd like to write for myself a tiny program that counts time spent on each
virtual desktop (in GNOME). In order to do that, I need my program to
detect the current virtual desktop. I've googled for it for about one hour
and couldn't find any solution. The closest thing I found is set of
tutorials: http://www.pygtk.org/articles.html Unfortunately, none of them
answers my questions:

How to detect current virtual desktop in GNOME? How to detect a virtual
desktop change?

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