-extern WXDLLEXPORT_DATA(const wxEventType) wxEVT_COMMAND_DIRPICKER_CHANGED;
-extern WXDLLEXPORT_DATA(const wxEventType) wxEVT_COMMAND_FILEPICKER_CHANGED;
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COMMAND_DIRPICKER_CHANGED, wxFileDirPickerEvent );
+wxDECLARE_EXPORTED_EVENT( WXDLLIMPEXP_CORE, wxEVT_COMMAND_FILEPICKER_CHANGED, wxFileDirPickerEvent );