http://code.google.com/p/rpcs3/source/detail?r=44

wxWidgets/include/wx/msw/dde.h

@@ -0,0 +1,144 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        dde.h
+// Purpose:     DDE class
+// Author:      Julian Smart
+// Modified by:
+// Created:     01/02/97
+// RCS-ID:      $Id: dde.h 53135 2008-04-12 02:31:04Z VZ $
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_DDE_H_
+#define _WX_DDE_H_
+
+#include "wx/ipcbase.h"
+
+/*
+ * Mini-DDE implementation
+
+   Most transactions involve a topic name and an item name (choose these
+   as befits your application).
+
+   A client can:
+
+   - ask the server to execute commands (data) associated with a topic
+   - request data from server by topic and item
+   - poke data into the server
+   - ask the server to start an advice loop on topic/item
+   - ask the server to stop an advice loop
+
+   A server can:
+
+   - respond to execute, request, poke and advice start/stop
+   - send advise data to client
+
+   Note that this limits the server in the ways it can send data to the
+   client, i.e. it can't send unsolicited information.
+ *
+ */
+
+class WXDLLIMPEXP_FWD_BASE wxDDEServer;
+class WXDLLIMPEXP_FWD_BASE wxDDEClient;
+
+class WXDLLIMPEXP_BASE wxDDEConnection: public wxConnectionBase
+{
+  DECLARE_DYNAMIC_CLASS(wxDDEConnection)
+public:
+  wxDDEConnection(wxChar *buffer, int size); // use external buffer
+  wxDDEConnection(); // use internal buffer
+  virtual ~wxDDEConnection(void);
+
+  // Calls that CLIENT can make
+  virtual bool Execute(const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
+  virtual bool Execute(const wxString& str) { return Execute(str, -1, wxIPC_TEXT); }
+  virtual wxChar *Request(const wxString& item, int *size = NULL, wxIPCFormat format = wxIPC_TEXT);
+  virtual bool Poke(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
+  virtual bool StartAdvise(const wxString& item);
+  virtual bool StopAdvise(const wxString& item);
+
+  // Calls that SERVER can make
+  virtual bool Advise(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
+
+  // Calls that both can make
+  virtual bool Disconnect(void);
+
+  // Default behaviour is to delete connection and return true
+  virtual bool OnDisconnect(void);
+
+ public:
+  wxString      m_topicName;
+  wxDDEServer*  m_server;
+  wxDDEClient*  m_client;
+
+  WXHCONV       m_hConv;
+  wxChar*       m_sendingData;
+  int           m_dataSize;
+  wxIPCFormat  m_dataType;
+
+    DECLARE_NO_COPY_CLASS(wxDDEConnection)
+};
+
+class WXDLLIMPEXP_BASE wxDDEServer: public wxServerBase
+{
+  DECLARE_DYNAMIC_CLASS(wxDDEServer)
+ public:
+
+  wxDDEServer(void);
+  virtual ~wxDDEServer(void);
+  bool Create(const wxString& server_name); // Returns false if can't create server (e.g. port
+                                  // number is already in use)
+  virtual wxConnectionBase *OnAcceptConnection(const wxString& topic);
+
+  ////////////////////////////////////////////////////////////
+  // Implementation
+
+  // Find/delete wxDDEConnection corresponding to the HCONV
+  wxDDEConnection *FindConnection(WXHCONV conv);
+  bool DeleteConnection(WXHCONV conv);
+  inline wxString& GetServiceName(void) const { return (wxString&) m_serviceName; }
+    inline wxDDEConnectionList& GetConnections(void) const
+    {
+        return (wxDDEConnectionList&) m_connections;
+    }
+
+protected:
+    int       m_lastError;
+    wxString  m_serviceName;
+    wxDDEConnectionList m_connections;
+};
+
+class WXDLLIMPEXP_BASE wxDDEClient: public wxClientBase
+{
+  DECLARE_DYNAMIC_CLASS(wxDDEClient)
+ public:
+  wxDDEClient(void);
+  virtual ~wxDDEClient(void);
+  bool ValidHost(const wxString& host);
+  virtual wxConnectionBase *MakeConnection(const wxString& host, const wxString& server, const wxString& topic);
+                                                // Call this to make a connection.
+                                                // Returns NULL if cannot.
+  virtual wxConnectionBase *OnMakeConnection(void); // Tailor this to return own connection.
+
+  ////////////////////////////////////////////////////////////
+  // Implementation
+
+  // Find/delete wxDDEConnection corresponding to the HCONV
+  wxDDEConnection *FindConnection(WXHCONV conv);
+  bool DeleteConnection(WXHCONV conv);
+
+    inline wxDDEConnectionList& GetConnections(void) const
+    {
+        return (wxDDEConnectionList&) m_connections;
+    }
+
+protected:
+    int       m_lastError;
+    wxDDEConnectionList m_connections;
+};
+
+void WXDLLIMPEXP_BASE wxDDEInitialize();
+void WXDLLIMPEXP_BASE wxDDECleanUp();
+
+#endif
+    // _WX_DDE_H_