#ifndef __DNDH_BASE__
#define __DNDH_BASE__
-#if defined(__WINDOWS__)
-#elif defined(__MOTIF__)
-#elif defined(__GTK__)
+#if defined(__WXMSW__)
+#include "wx/msw/ole/dropsrc.h"
+#include "wx/msw/ole/droptgt.h"
+#include "wx/msw/ole/dataobj.h"
+#elif defined(__WXMOTIF__)
+#elif defined(__WXGTK__)
#include "wx/gtk/dnd.h"
#endif