+ // append the entries for all our columns to the given menu, with the
+ // currently visible columns being checked
+ //
+ // this is used by ShowColumnsMenu() but can also be used if you use your
+ // own custom columns menu but nevertheless want to show all the columns in
+ // it
+ //
+ // the ids of the items corresponding to the columns are consecutive and
+ // start from idColumnsBase
+ void AddColumnsItems(wxMenu& menu, int idColumnsBase = 0);
+#endif // wxUSE_MENUS
+