added some wxMSW stuff

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/dde.h

@@ -0,0 +1,161 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        dde.h
+// Purpose:     DDE class
+// Author:      Julian Smart
+// Modified by:
+// Created:     01/02/97
+// RCS-ID:      $Id$
+// Copyright:   (c) Julian Smart and Markus Holzem
+// Licence:   	wxWindows license
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __DDEH__
+#define __DDEH__
+
+#ifdef __GNUG__
+#pragma interface "dde.h"
+#endif
+
+#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 WXDLLEXPORT wxDDEServer;
+class WXDLLEXPORT wxDDEClient;
+
+class WXDLLEXPORT wxDDEConnection: public wxConnectionBase
+{
+  DECLARE_DYNAMIC_CLASS(wxDDEConnection)
+ public:
+  char *buf_ptr;
+  wxString topic_name;
+  int buf_size;
+  wxDDEServer *server;
+  wxDDEClient *client;
+
+  WXHCONV hConv;
+  char *sending_data;
+  int data_size;
+  int data_type;
+
+  wxDDEConnection(char *buffer, int size);
+  wxDDEConnection(void);
+  ~wxDDEConnection(void);
+
+  // Calls that CLIENT can make
+  virtual bool Execute(char *data, int size = -1, int format = wxCF_TEXT);
+  virtual bool Execute(const wxString& str) { return Execute((char *)(const char *)str, -1, wxCF_TEXT); }
+  virtual char *Request(const wxString& item, int *size = NULL, int format = wxCF_TEXT);
+  virtual bool Poke(const wxString& item, char *data, int size = -1, int format = wxCF_TEXT);
+  virtual bool StartAdvise(const wxString& item);
+  virtual bool StopAdvise(const wxString& item);
+
+  // Calls that SERVER can make
+  virtual bool Advise(const wxString& item, char *data, int size = -1, int format = wxCF_TEXT);
+
+  // Calls that both can make
+  virtual bool Disconnect(void);
+
+  // Callbacks to SERVER - override at will
+  virtual bool OnExecute(const wxString& topic, char *data, int size, int format) { return FALSE; };
+  virtual char *OnRequest(const wxString& topic, const wxString& item, int *size, int format) { return NULL; };
+  virtual bool OnPoke(const wxString& topic, const wxString& item, char *data, int size, int format) { return FALSE; };
+  virtual bool OnStartAdvise(const wxString& topic, const wxString& item) { return FALSE; };
+  virtual bool OnStopAdvise(const wxString& topic, const wxString& item) { return FALSE; };
+
+  // Callbacks to CLIENT - override at will
+  virtual bool OnAdvise(const wxString& topic, const wxString& item, char *data, int size, int format) { return FALSE; };
+
+  // Callbacks to BOTH
+
+  // Default behaviour is to delete connection and return TRUE
+  virtual bool OnDisconnect(void);
+};
+
+class WXDLLEXPORT wxDDEServer: public wxServerBase
+{
+  DECLARE_DYNAMIC_CLASS(wxDDEServer)
+ public:
+
+  wxDDEServer(void);
+  ~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&) service_name; }
+  inline wxList& GetConnections(void) const { return (wxList&) connections; }
+
+ protected:
+  int lastError;
+  wxString service_name;
+  wxList connections;
+};
+
+class WXDLLEXPORT wxDDEClient: public wxClientBase
+{
+  DECLARE_DYNAMIC_CLASS(wxDDEClient)
+ public:
+  wxDDEClient(void);
+  ~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 wxList& GetConnections(void) const { return (wxList&) connections; }
+
+ protected:
+  int lastError;
+  wxList connections;
+};
+
+void WXDLLEXPORT wxDDEInitialize();
+void WXDLLEXPORT wxDDECleanUp();
+
+// Compatibility
+#if WXWIN_COMPATIBILITY
+#define wxServer wxDDEServer
+#define wxClient wxDDEClient
+#define wxConnection wxDDEConnection
+#define wxIPCInitialize wxDDEInitialize
+#define wxIPCCleanUp wxDDECleanUp
+#endif
+
+#endif
+    // __DDEH__