-#ifndef __DDEH_BASE__
-#define __DDEH_BASE__
+#ifndef _WX_DDE_H_BASE_
+#define _WX_DDE_H_BASE_
+
+#include "wx/list.h"
+
+class wxDDEClient;
+class wxDDEServer;
+class wxDDEConnection;
+
+WX_DECLARE_EXPORTED_LIST(wxDDEClient, wxDDEClientList);
+WX_DECLARE_EXPORTED_LIST(wxDDEServer, wxDDEServerList);
+WX_DECLARE_EXPORTED_LIST(wxDDEConnection, wxDDEConnectionList);
+
#if defined(__WXMSW__)
#include "wx/msw/dde.h"
#elif defined(__WXMOTIF__)
-#include "wx/xt/dde.h"
+#include "wx/motif/dde.h"
#elif defined(__WXGTK__)
#include "wx/gtk/dde.h"
-#elif defined(__WXQT__)
-#include "wx/qt/dde.h"
+#elif defined(__WXMAC__)
+#include "wx/mac/dde.h"
+#elif defined(__WXPM__)
+#include "wx/os2/dde.h"
#endif
#endif
- // __DDEH_BASE__
+ // _WX_DDE_H_BASE_