iopcsyncio.h

此为Insight opc client InfoServerExplorer源程序

/////////////////////////////////////////////////////////////////////////////
//
//  OPC Data Access VC++ Client:	IOPCSyncIO.h
//									(Header File)
//
/////////////////////////////////////////////////////////////////////////////
//
//          Author: Raphael Imhof
//    Initial Date: 11/04/98
//       $Workfile: IOPCSyncIO.h $
//       $Revision: 1 $
//           $Date: 7/27/99 5:23p $
//   Target System: Microsoft Windows NT 4.0
//     Environment: Visual C++ 5.0 / OPC DataAccess 1.0/2.0
//         Remarks: 
//
/////////////////////////////////////////////////////////////////////////////
//
//     Description: interface of the CIOPCSyncIO class.
//					IOPCSyncIO wrapper.
//					
//
/////////////////////////////////////////////////////////////////////////////
//
//  History of Changes     (Please remove very old comments and blank lines!)
//            $Log: /IDK/OPCServer/clients/VC++/InfoServerExplorer/IOPCSyncIO.h $
// 
// 1     7/27/99 5:23p Imhof
// 
// 1     7/27/99 5:19p Imhof
// 
// 4     1/15/99 6:43p Imhof
// Updated legal notice.
// 
// 3     12/11/98 5:58p Imhof
// Made modifications for OPC 2.0.
// 
// 2     11/10/98 2:20p Imhof
// Added file header's.
// 
//  $Nokeywords:$ (To avoid useless search while checking in.)
/////////////////////////////////////////////////////////////////////////////
//  Copyright (C) 1998, Siemens Building Technologies, Inc. Landis Division
//
// SIEMENS BUILDING TECHNOLOGIES, INC. IS PROVIDING THE FOLLOWING
// EXAMPLES OF CODE AS SAMPLE ONLY.
//
// SIEMENS BUILDING TECHNOLOGIES, INC.  MAKES NO REPRESENTATIONS
// OR WARRANTIES OF ANY KIND  WITH RESPECT TO THE VALIDTY OF THE 
// CODES   OR   DESIRED   RESULTS   AND   DISCLAIMS   ALL   SUCH 
// REPRESENTATIONS   AND   WARRANTIES,  INCLUDING  FOR  EXAMPLE, 
// WARRANTIES  OF  MERCHANTABILITY  AND FITNESS FOR A PARTICULAR 
// PURPOSE.    SIEMENS  BUILIDNG  TECHNOLOGIES,  INC.  DOES  NOT 
// REPRESENT  OR  WARRANT  THAT  THE  FOLLOWING CODE SAMPLES ARE 
// ACCURATE, VALID, COMPLETE OR CURRENT.
//
/////////////////////////////////////////////////////////////////////////////

#if !defined(AFX_IOPCSYNCIO_H__8553F3E4_2BD1_11D2_AD89_00104B2C9D06__INCLUDED_)
#define AFX_IOPCSYNCIO_H__8553F3E4_2BD1_11D2_AD89_00104B2C9D06__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

#include <opcda.h>

class CIOPCSyncIO  
{
public:
	CIOPCSyncIO(CComPtr<IOPCSyncIO> pOPCSyncIO);
	CIOPCSyncIO(CComPtr<IOPCGroupStateMgt> pOPCGroup);
	virtual ~CIOPCSyncIO();

	HRESULT Read(	OPCDATASOURCE   dwSource,
					DWORD	        dwNumItems,
					OPCHANDLE*		phServer,
					OPCITEMSTATE**	ppItemValues,
					HRESULT**		ppErrors );

	HRESULT CIOPCSyncIO::Write(	DWORD	        dwNumItems,
								OPCHANDLE*		phServer,
								VARIANT*		pItemValues,
								HRESULT**		ppErrors );

private:
	CComPtr<IOPCSyncIO>  m_pOPCSyncIO;
};

#endif // !defined(AFX_IOPCSYNCIO_H__8553F3E4_2BD1_11D2_AD89_00104B2C9D06__INCLUDED_)