[pygtk] Scrolling gtk.Viewport to a specific location

[Mitko Haralanov]

I have a gtk.ScrolledWindow, which has a gtk.VBox added with a
gtk.Viewport.
What I would like to do is be able to scroll the gtk.ScrolledWindow to
a specific location (one of the gtk.VBox children). I know how to do
the actual scrolling (using the h/vadjustments) but how do I determine
how much to scroll it by so the correct child is in view?

Thanks for the help?

-- 
Mitko Haralanov
==========================================
 Professor: No fair! You changed the outcome by measuring it.