+ // Call this method to specify a non-default persistence manager to use.
+ // This function should usually be called very early to affect creation of
+ // all persistent controls and the object passed to it must have a lifetime
+ // long enough to be still alive when the persistent controls are destroyed
+ // and need it to save their state so typically this would be a global or a
+ // wxApp member.
+ static void Set(wxPersistenceManager& manager);
+