138 lines
4 KiB
C++
138 lines
4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/msw/dde.h
|
|
// Purpose: DDE class
|
|
// Author: Julian Smart
|
|
// Modified by:
|
|
// Created: 01/02/97
|
|
// 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
|
|
{
|
|
public:
|
|
wxDDEConnection(void *buffer, size_t size); // use external buffer
|
|
wxDDEConnection(); // use internal buffer
|
|
virtual ~wxDDEConnection();
|
|
|
|
// implement base class pure virtual methods
|
|
virtual const void *Request(const wxString& item,
|
|
size_t *size = NULL,
|
|
wxIPCFormat format = wxIPC_TEXT);
|
|
virtual bool StartAdvise(const wxString& item);
|
|
virtual bool StopAdvise(const wxString& item);
|
|
virtual bool Disconnect();
|
|
|
|
protected:
|
|
virtual bool DoExecute(const void *data, size_t size, wxIPCFormat format);
|
|
virtual bool DoPoke(const wxString& item, const void *data, size_t size,
|
|
wxIPCFormat format);
|
|
virtual bool DoAdvise(const wxString& item, const void *data, size_t size,
|
|
wxIPCFormat format);
|
|
|
|
public:
|
|
wxString m_topicName;
|
|
wxDDEServer* m_server;
|
|
wxDDEClient* m_client;
|
|
|
|
WXHCONV m_hConv;
|
|
const void* m_sendingData;
|
|
int m_dataSize;
|
|
wxIPCFormat m_dataType;
|
|
|
|
wxDECLARE_NO_COPY_CLASS(wxDDEConnection);
|
|
DECLARE_DYNAMIC_CLASS(wxDDEConnection)
|
|
};
|
|
|
|
class WXDLLIMPEXP_BASE wxDDEServer : public wxServerBase
|
|
{
|
|
public:
|
|
wxDDEServer();
|
|
bool Create(const wxString& server_name);
|
|
virtual ~wxDDEServer();
|
|
|
|
virtual wxConnectionBase *OnAcceptConnection(const wxString& topic);
|
|
|
|
// Find/delete wxDDEConnection corresponding to the HCONV
|
|
wxDDEConnection *FindConnection(WXHCONV conv);
|
|
bool DeleteConnection(WXHCONV conv);
|
|
wxString& GetServiceName() const { return (wxString&) m_serviceName; }
|
|
|
|
wxDDEConnectionList& GetConnections() const
|
|
{ return (wxDDEConnectionList&) m_connections; }
|
|
|
|
protected:
|
|
int m_lastError;
|
|
wxString m_serviceName;
|
|
wxDDEConnectionList m_connections;
|
|
|
|
DECLARE_DYNAMIC_CLASS(wxDDEServer)
|
|
};
|
|
|
|
class WXDLLIMPEXP_BASE wxDDEClient: public wxClientBase
|
|
{
|
|
public:
|
|
wxDDEClient();
|
|
virtual ~wxDDEClient();
|
|
|
|
bool ValidHost(const wxString& host);
|
|
|
|
// Call this to make a connection. Returns NULL if cannot.
|
|
virtual wxConnectionBase *MakeConnection(const wxString& host,
|
|
const wxString& server,
|
|
const wxString& topic);
|
|
|
|
// Tailor this to return own connection.
|
|
virtual wxConnectionBase *OnMakeConnection();
|
|
|
|
// Find/delete wxDDEConnection corresponding to the HCONV
|
|
wxDDEConnection *FindConnection(WXHCONV conv);
|
|
bool DeleteConnection(WXHCONV conv);
|
|
|
|
wxDDEConnectionList& GetConnections() const
|
|
{ return (wxDDEConnectionList&) m_connections; }
|
|
|
|
protected:
|
|
int m_lastError;
|
|
wxDDEConnectionList m_connections;
|
|
|
|
DECLARE_DYNAMIC_CLASS(wxDDEClient)
|
|
};
|
|
|
|
void WXDLLIMPEXP_BASE wxDDEInitialize();
|
|
void WXDLLIMPEXP_BASE wxDDECleanUp();
|
|
|
|
#endif // _WX_DDE_H_
|