[Gtk-sharp-list] How do i create a new CanvasGroup

[Yves Kurz]

Hello..

I'm experimenting with the Canvas classes of gtk#. Now I would like to
create a new CanvasGroup put a CanvasItem in it. 
Now my question is: How can i create a new CanvasGroup and put it then
in the canvas root group?
As far as i have seen there is only one public Constructor in
CanvasGroup and it takes an IntPtr.. But this doesn't seem to be the
right way.

Can you help me please?

Thank you

yves