how to find widget size?

[padraig turing idc ul ie]

any way to find out the size (in pixels) of a widget that you have the
pointer to.

i.e. something like 
get_widget_size( GtkWidget *widget, gint *width, gint *height );


thx,

Padraig.

--
Padraig Finnerty                        www.csn.ul.ie/~padraig
Interaction Design Centre               www.idc.ul.ie
University Of Limerick                  www.ul.ie