Visible bounding-box Gnome::Canvas::Item?

Hi,
I've derived a class from Polygon.  When the polygon is clicked, I want i=
t =20
to appear "selected".  I don't see a way to make the bounding box visible=
, =20
but that would be a good start.

Could anyone suggest a method to achieve this?  And in general, say I =20
start with a Gnome::Canvas::Item, how do I change its appearance.

Thanks,
johan




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