How to find out what KDE 3 K -> Log out -> Hibernate really does

Question

I'm using KDE 3.5.11. I can hibernate my laptop using K -> Log out -> Hibernate. I would like to know how to find out what the button does to do the very same from the command line. Therefor my question is more like "how to find out programmatically what a button does" instead of "how do I hibernate" (I could lookup the second myself).

Thanks in advance,

Somebody

Answer 1

Browse the source. For KDE 4, it's kde-workspace/plasma/desktop/applets/kickoff/core/itemhandlers.cpp.