#include "wx/object.h"
#include "wx/chartype.h"
-class WXDLLEXPORT wxDataFormat;
-class WXDLLEXPORT wxDataObject;
-class WXDLLEXPORT wxClipboard;
+class WXDLLIMPEXP_FWD_CORE wxDataFormat;
+class WXDLLIMPEXP_FWD_CORE wxDataObject;
+class WXDLLIMPEXP_FWD_CORE wxClipboard;
// ----------------------------------------------------------------------------
// wxClipboard represents the system clipboard. Normally, you should use