-DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED)
-DEFINE_EVENT_TYPE(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING)
+wxDEFINE_EVENT( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED, wxBookCtrlEvent );
+wxDEFINE_EVENT( wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGING, wxBookCtrlEvent );