int button_item_to_widget_value (Lisp_Object desc, widget_value *wv,
int allow_text_field_p, int no_keys_p);
widget_value * gui_items_to_widget_values (Lisp_Object items);
int button_item_to_widget_value (Lisp_Object desc, widget_value *wv,
int allow_text_field_p, int no_keys_p);
widget_value * gui_items_to_widget_values (Lisp_Object items);