gtk/gtk.go
func (v *TreeModel) GetIter(path *TreePath) (*TreeIter, error) {
	var iter C.GtkTreeIter
	c := C.gtk_tree_model_get_iter(v.native(), &iter, path.native())
	if !gobool(c) {
		return nil, errors.New("Unable to set iterator")
	}
	t := &TreeIter{iter}
	return t, nil
}
func (v *TreeModel) GetIter(path *TreePath) (*TreeIter, error) {
	var iter C.GtkTreeIter
	c := C.gtk_tree_model_get_iter(v.native(), &iter, path.native())
	if !gobool(c) {
		return nil, errors.New("Unable to set iterator")
	}
	t := &TreeIter{iter}
	return t, nil
}
// GetIter() is a wrapper around gtk_tree_model_get_iter().