-#if !WXWIN_COMPATIBILITY_EVENT_TYPES
-const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING = wxNewEventType();
-const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED = wxNewEventType();
-#endif
-const int wxID_CHOICEBOOKCHOICE = wxNewId();
+wxDEFINE_EVENT( wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, wxBookCtrlEvent );
+wxDEFINE_EVENT( wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED, wxBookCtrlEvent );