[gtkmm] simple question

[Carl Nygard <cjnygard fast net>]

I know I'm going to feel like a dope, but how can I find out the size of
a widget.  Gtk::Frame specifically?  I can only find a method for
Gtk::Window.  I'm trying to set Paned widgets position relative to the
parent's size, so I don't want to use the absolute coords but rather
fractions of parent size and compute.

Regards,
Carl