TreeView selection?

[Neil Jerram]

How can I find out which row of a TreeView is selected?

So far I have this:

(call-with-values
  (lambda ()
    (get-selected (get-selection treeview)))
  (lambda (model iter)
    iter))

... which produces:

#<gvalue <gtk-tree-iter> 405fa068>

I then tried adding a gvalue->scm call, to convert this gvalue to what
I hoped would be the row value, but it appeared to have no effect.
(In other words, the return value of the gvalue->scm call was still a
<gvalue ...>.)

Thanks,
        Neil