Skeleton Panel Plugin

[David Schneider]

Hi, I'm interested in making a small plugin that embeds other application
windows into the panel (such as the pidgin buddy list).

Is there a good skeleton plugin that I can start from?  If not, which
(preferably simple) plugin do you recommend learning the basic requirements
and preferred style from? I have plenty of C experience, but have only
touched GTK through Python and haven't dealt with Xfce libraries at all.

Thanks!
-David