gtk/gtk.go
func (v *TreeModel) IterParent(iter, child *TreeIter) bool {
	c := C.gtk_tree_model_iter_parent(v.native(), iter.native(), child.native())
	return gobool(c)
}
func (v *TreeModel) IterParent(iter, child *TreeIter) bool {
	c := C.gtk_tree_model_iter_parent(v.native(), iter.native(), child.native())
	return gobool(c)
}
// IterParent is a wrapper around gtk_tree_model_iter_parent().