gtk_tree_selection_selected_foreach example?

[Skip Montanaro <skip pobox com>]

Does someone have a fairly simple example of using
gtk_tree_selection_selected_foreach?  I can't find any use of it in the gtk
sources.  I'm trying to wrap it in PyGtk, but can't figure out what I'm
supposed to do with the GtkTreeIter* argument to the user's foreach func.

Thx,

-- 
Skip Montanaro (skip pobox com)
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