iopcbrowseserveraddressspace.cpp

此文件为VC++开发环境下的OPC client trend 源代码

/////////////////////////////////////////////////////////////////////////////
//
//  OPC Trend VC++ Client:	IOPCBrowseServerAddressSpace.CPP
//							(Source File)
//
/////////////////////////////////////////////////////////////////////////////
//
//          Author: Raphael Imhof
//    Initial Date: 11/04/98
//       $Workfile: IOPCBrowseServerAddressSpace.cpp $
//       $Revision: 1 $
//           $Date: 7/27/99 5:24p $
//   Target System: Microsoft Windows NT 4.0
//     Environment: Visual C++ 5.0 / OPC DataAccess 1.0 / 2.0
//         Remarks: 
//
/////////////////////////////////////////////////////////////////////////////
//
//     Description: implementation of the CIOPCBrowseServerAddressSpace class.
//					IOPCBrowseServerAddressSpace wrapper.
//					
//
/////////////////////////////////////////////////////////////////////////////
//
//  History of Changes     (Please remove very old comments and blank lines!)
//            $Log: /IDK/OPCServer/clients/VC++/Trend/IOPCBrowseServerAddressSpace.cpp $
// 
// 1     7/27/99 5:24p Imhof
// 
// 1     7/27/99 5:19p Imhof
// 
// 4     1/15/99 7:04p Imhof
// Updated legal notice.
// 
// 3     12/15/98 10:30a Imhof
// Modifications for OPC 2.0
// 
// 2     11/06/98 5:53p Imhof
// Added header, comment and made some small code changes.
// 
// 
//  $Nokeywords:$ (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.
//
/////////////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "IOPCBrowseServerAddressSpace.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CIOPCBrowseServerAddressSpace::CIOPCBrowseServerAddressSpace(CComPtr<IOPCBrowseServerAddressSpace> pOPCBrowser)
{
	m_pOPCBrowser = pOPCBrowser; 
}

CIOPCBrowseServerAddressSpace::CIOPCBrowseServerAddressSpace(CComPtr<IUnknown>  pUnknown)
{	
	if(FAILED(pUnknown->QueryInterface(IID_IOPCBrowseServerAddressSpace, (void**)&m_pOPCBrowser)))
	{
		m_pOPCBrowser = NULL;
		TRACE("CIOPCBrowseServerAddressSpace() \n");
	}
}

CIOPCBrowseServerAddressSpace::~CIOPCBrowseServerAddressSpace()
{

}

HRESULT CIOPCBrowseServerAddressSpace::BrowseAccessPaths(LPCWSTR szItemID, LPENUMSTRING* ppIEnumString)
{
	if(m_pOPCBrowser == NULL)
		return E_FAIL;

	HRESULT hr = m_pOPCBrowser->BrowseAccessPaths( szItemID, ppIEnumString );
        
	if(FAILED(hr))
		TRACE("Browse::BrowseAccessPaths");
        
	return hr; 
}

HRESULT CIOPCBrowseServerAddressSpace::BrowseOPCItemIDs(OPCBROWSETYPE   dwBrowseFilterType,
														LPCWSTR         szFilterCriteria,
														VARTYPE         vtDataTypeFilter,
														DWORD           dwAccessRightsFilter,
														LPENUMSTRING*	ppIEnumString)
{
	if(m_pOPCBrowser == NULL)
		return E_FAIL;

	HRESULT hr = m_pOPCBrowser->BrowseOPCItemIDs( dwBrowseFilterType, szFilterCriteria,
		                          vtDataTypeFilter, dwAccessRightsFilter, ppIEnumString );
	if(FAILED(hr))
		TRACE("Browse::BrowseOPCItemIDs");

	return hr; 
}