gboolean psppire_var_view_get_iter_next (PsppireVarView *vv, GtkTreeIter *iter);
+GSList *psppire_var_view_list_names (PsppireVarView *vv, gint column);
+
+
const struct variable * psppire_var_view_get_variable (PsppireVarView *vv, gint column, GtkTreeIter *iter);
const struct variable * psppire_var_view_get_var_from_model (GtkTreeModel *, gint column, GtkTreeIter *iter);