- GtkTreeSelection *selection = gtk_tree_view_get_selection (treeview);
-
- if (! gtk_tree_selection_get_selected (selection,
- &top_model, &top_iter))
- {
- return NULL;
- }
-
- get_base_model (top_model, &top_iter, &model, &iter);
-
- g_assert (PSPPIRE_IS_DICT (model));