?? connectionpoint.h
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//**************************************************************************
//
// Copyright (c) FactorySoft, INC. 1996-1998, All Rights Reserved
//
//**************************************************************************
//
// Filename : ConnectionPoint.h
// $Author : Jim Hansen
//
// Description: Callback class for OPC Data Access 2.0
//
//
//**************************************************************************
#ifndef CONNECTIONPOINT_H
#define CONNECTIONPOINT_H
//extern CComModule _Module;
#include <atlcom.h>
class OPCCallback :
public IOPCDataCallback,
public CComObjectRootEx<CComMultiThreadModel>
{
public:
OPCCallback() {;}
virtual ~OPCCallback(){;}
BEGIN_COM_MAP(OPCCallback)
COM_INTERFACE_ENTRY(IOPCDataCallback)
END_COM_MAP()
DECLARE_NOT_AGGREGATABLE(OPCCallback)
// The OPC Callback functions
STDMETHODIMP OnDataChange(
DWORD Transid,
OPCHANDLE grphandle,
HRESULT masterquality,
HRESULT mastererror,
DWORD count,
OPCHANDLE * clienthandles,
VARIANT * values,
WORD * quality,
FILETIME * time,
HRESULT * errors);
STDMETHODIMP OnReadComplete(
DWORD Transid,
OPCHANDLE grphandle,
HRESULT masterquality,
HRESULT mastererror,
DWORD count,
OPCHANDLE * clienthandles,
VARIANT * values,
WORD * quality,
FILETIME * time,
HRESULT * errors);
STDMETHODIMP OnWriteComplete(
DWORD Transid,
OPCHANDLE grphandle,
HRESULT mastererr,
DWORD count,
OPCHANDLE * clienthandles,
HRESULT * errors);
STDMETHODIMP OnCancelComplete(
DWORD transid,
OPCHANDLE grphandle);
};
typedef CComObject<OPCCallback> OPCCallbackObject;
//**************************************************************************
class OPCShutdown :
public IOPCShutdown,
public CComObjectRootEx<CComMultiThreadModel>
{
public:
OPCShutdown() {;}
virtual ~OPCShutdown(){;}
BEGIN_COM_MAP(OPCShutdown)
COM_INTERFACE_ENTRY(IOPCShutdown)
END_COM_MAP()
DECLARE_NOT_AGGREGATABLE(OPCShutdown)
// The OPC Callback function
STDMETHODIMP ShutdownRequest(LPCWSTR szReason);
CString reason;
};
typedef CComObject<OPCShutdown> OPCShutdownObject;
#endif //CONNECTIONPOINT_H
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