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C++ IEnumWbemClassObject::Reset方法代码示例

本文整理汇总了C++中IEnumWbemClassObject::Reset方法的典型用法代码示例。如果您正苦于以下问题：C++ IEnumWbemClassObject::Reset方法的具体用法？C++ IEnumWbemClassObject::Reset怎么用？C++ IEnumWbemClassObject::Reset使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类IEnumWbemClassObject的用法示例。


在下文中一共展示了IEnumWbemClassObject::Reset方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: GetVideoMemoryViaWMI

HRESULT GetVideoMemoryViaWMI( WCHAR* strInputDeviceID, DWORD* pdwAdapterRam )
{
	HRESULT hr;
	bool bGotMemory = false;
	HRESULT hrCoInitialize = S_OK;
	IWbemLocator* pIWbemLocator = nullptr;
	IWbemServices* pIWbemServices = nullptr;
	BSTR pNamespace = nullptr;

	*pdwAdapterRam = 0;
	hrCoInitialize = CoInitialize( 0 );

	hr = CoCreateInstance( CLSID_WbemLocator,
						   nullptr,
						   CLSCTX_INPROC_SERVER,
						   IID_IWbemLocator,
						   ( LPVOID* )&pIWbemLocator );
#ifdef PRINTF_DEBUGGING
	if( FAILED( hr ) ) wprintf( L"WMI: CoCreateInstance failed: 0x%0.8x\n", hr );
#endif

	if( SUCCEEDED( hr ) && pIWbemLocator )
	{
		// Using the locator, connect to WMI in the given namespace.
		pNamespace = SysAllocString( L"\\\\.\\root\\cimv2" );

		hr = pIWbemLocator->ConnectServer( pNamespace, nullptr, nullptr, 0L,
										   0L, nullptr, nullptr, &pIWbemServices );
#ifdef PRINTF_DEBUGGING
		if( FAILED( hr ) ) wprintf( L"WMI: pIWbemLocator->ConnectServer failed: 0x%0.8x\n", hr );
#endif
		if( SUCCEEDED( hr ) && pIWbemServices != 0 )
		{
			HINSTANCE hinstOle32 = nullptr;

			hinstOle32 = LoadLibraryW( L"ole32.dll" );
			if( hinstOle32 )
			{
				PfnCoSetProxyBlanket pfnCoSetProxyBlanket = nullptr;

				pfnCoSetProxyBlanket = ( PfnCoSetProxyBlanket )GetProcAddress( hinstOle32, "CoSetProxyBlanket" );
				if( pfnCoSetProxyBlanket != 0 )
				{
					// Switch security level to IMPERSONATE.
					pfnCoSetProxyBlanket( pIWbemServices, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, nullptr,
										  RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, nullptr, 0 );
				}

				FreeLibrary( hinstOle32 );
			}

			IEnumWbemClassObject* pEnumVideoControllers = nullptr;
			BSTR pClassName = nullptr;

			pClassName = SysAllocString( L"Win32_VideoController" );

			hr = pIWbemServices->CreateInstanceEnum( pClassName, 0,
													 nullptr, &pEnumVideoControllers );
#ifdef PRINTF_DEBUGGING
			if( FAILED( hr ) ) wprintf( L"WMI: pIWbemServices->CreateInstanceEnum failed: 0x%0.8x\n", hr );
#endif

			if( SUCCEEDED( hr ) && pEnumVideoControllers )
			{
				IWbemClassObject* pVideoControllers[10] = {0};
				DWORD uReturned = 0;
				BSTR pPropName = nullptr;

				// Get the first one in the list
				pEnumVideoControllers->Reset();
				hr = pEnumVideoControllers->Next( 5000,             // timeout in 5 seconds
												  10,                  // return the first 10
												  pVideoControllers,
												  &uReturned );
#ifdef PRINTF_DEBUGGING
				if( FAILED( hr ) ) wprintf( L"WMI: pEnumVideoControllers->Next failed: 0x%0.8x\n", hr );
				if( uReturned == 0 ) wprintf( L"WMI: pEnumVideoControllers uReturned == 0\n" );
#endif

				VARIANT var;
				if( SUCCEEDED( hr ) )
				{
					bool bFound = false;
					for( UINT iController = 0; iController < uReturned; iController++ )
					{
						if ( !pVideoControllers[iController] )
							continue;

						pPropName = SysAllocString( L"PNPDeviceID" );
						hr = pVideoControllers[iController]->Get( pPropName, 0L, &var, nullptr, nullptr );
#ifdef PRINTF_DEBUGGING
						if( FAILED( hr ) )
							wprintf( L"WMI: pVideoControllers[iController]->Get PNPDeviceID failed: 0x%0.8x\n", hr );
#endif
						if( SUCCEEDED( hr ) )
						{
							if( wcsstr( var.bstrVal, strInputDeviceID ) != 0 )
								bFound = true;
						}
						VariantClear( &var );
//.........这里部分代码省略.........
开发者ID:SimFederal，项目名称:SingularityViewer，代码行数:101，代码来源:lldxhardware.cpp

示例2: GetWmiInfo

	tstring CCliMgr::GetWmiInfo( LPCTSTR lpszClass,LPCTSTR lpszField)
	{
		tstring SysInfo,strtmp;
		HRESULT ret;
		ret = CoInitialize(NULL);
		ret = CoInitializeSecurity( NULL,
			-1,
			NULL,
			NULL,
			RPC_C_AUTHN_LEVEL_PKT,
			RPC_C_IMP_LEVEL_IMPERSONATE,
			NULL,
			EOAC_NONE,
			0
			);
		if (ret == S_OK || ret== RPC_E_TOO_LATE )
		{
			IWbemLocator * pIWbemLocator = NULL;
			IWbemServices * pWbemServices = NULL;
			IEnumWbemClassObject * pEnumObject  = NULL;
			BSTR bstrNamespace = (L"root\\cimv2");// 通过 IWbemLocator 和 IWbemServices 这两个 COM 接口访问 WMI, 获取系统信息
			if(CoCreateInstance (CLSID_WbemAdministrativeLocator, NULL,
				CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER, IID_IUnknown ,(void**)&pIWbemLocator) 
				== S_OK)
			{
				if(pIWbemLocator->ConnectServer(
					bstrNamespace,  // Namespace
					NULL,			// Userid
					NULL,           // PW
					NULL,           // Locale
					0,              // flags
					NULL,           // Authority
					NULL,           // Context
					&pWbemServices
					) == S_OK)
				{
					HRESULT hRes;
					_bstr_t strQuery = (L"Select * from Win32_OperatingSystem");
					hRes = pWbemServices->ExecQuery(_bstr_t("WQL"), strQuery,WBEM_FLAG_RETURN_IMMEDIATELY,NULL,&pEnumObject);
					if(hRes == S_OK)
					{
						ULONG uCount = 1, uReturned;
						IWbemClassObject * pClassObject = NULL;
						hRes = pEnumObject->Reset();
						if(hRes == S_OK)
						{
							hRes = pEnumObject->Next(WBEM_INFINITE,uCount, &pClassObject, &uReturned);
							if(hRes == S_OK)
							{
								strtmp = "操作系统的名称: "+_getWmiInfo(pClassObject,"Caption")+"\r\n";
								SysInfo = SysInfo + strtmp;
							}
							if (pClassObject != NULL)
								pClassObject->Release();				
						}
					}
					strQuery = (L"Select * from Win32_DiskDrive");
					hRes = pWbemServices->ExecQuery(_bstr_t("WQL"), strQuery,WBEM_FLAG_RETURN_IMMEDIATELY,NULL,&pEnumObject);
					if(hRes == S_OK)
					{
						ULONG uCount = 1, uReturned;
						IWbemClassObject * pClassObject = NULL;
						hRes = pEnumObject->Reset();
						if(hRes == S_OK)
						{
							hRes = pEnumObject->Next(WBEM_INFINITE,uCount, &pClassObject, &uReturned);
							if(hRes == S_OK)
							{
								strtmp = "硬盘的Model: "+_getWmiInfo(pClassObject,"Model")+"\r\n";
								SysInfo = SysInfo + strtmp;
								m_pLogger->WriteLog(LM_INFO, TEXT("硬盘的Model: %s"),_getWmiInfo(pClassObject,"Model").c_str());
							}
							if (pClassObject != NULL)
								pClassObject->Release();				
						}
					}					
					strQuery = (L"Select * from Win32_LogicalDisk");
					hRes = pWbemServices->ExecQuery(_bstr_t("WQL"), strQuery,WBEM_FLAG_RETURN_IMMEDIATELY,NULL,&pEnumObject);
					if(hRes == S_OK)
					{
						ULONG uCount = 1, uReturned;
						IWbemClassObject * pClassObject = NULL;
						hRes = pEnumObject->Reset();
						if(hRes == S_OK)
						{
							while( pEnumObject->Next( WBEM_INFINITE, 
								uCount, &pClassObject, &uReturned) == S_OK )
							{
								if (atoi(_getWmiInfo(pClassObject,"DriveType").c_str()) != 3)
									continue;
								tstring str;
								str =_getWmiInfo(pClassObject,"Name");
								strtmp = "盘符: " +str+"    ";
								m_pLogger->WriteLog(LM_INFO, TEXT("盘符: %s"),str.c_str());
								tstring drv;
								drv += toupper(str[0]);										
								if(m_Hy.IsDriverProtected((char *)drv.c_str()))
								{
									strtmp = strtmp+ "还原状态: 保护 ";
									m_pLogger->WriteLog(LM_INFO, TEXT("还原状态: 保护 "));
//.........这里部分代码省略.........
开发者ID:lubing521，项目名称:important-files，代码行数:101，代码来源:CliMgr.cpp

示例3: QueryNetworkAdapters

void QueryNetworkAdapters(std::string query, std::vector<NetworkAdapter*> &vAdapters)
{

	std::cout << "1: " << &vAdapters << std::endl;

	HRESULT hRes;
 //   // Step 1: --------------------------------------------------
 //   // Initialize COM. ------------------------------------------
 //   hRes = CoInitializeEx(0, COINIT_MULTITHREADED); 
 //   if (FAILED(hRes))
 //   {
	//	std::cout << "Failed to initialize COM library. Error code = 0x" << std::hex << hRes << std::endl;
 //   }

 //   // Step 2: --------------------------------------------------
 //   // Set general COM security levels --------------------------
 //   // Note: If you are using Windows 2000, you need to specify -
 //   // the default authentication credentials for a user by using
 //   // a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
 //   // parameter of CoInitializeSecurity ------------------------
 //   hRes = CoInitializeSecurity(
 //       NULL, 
 //       -1,                          // COM authentication
 //       NULL,                        // Authentication services
 //       NULL,                        // Reserved
 //       RPC_C_AUTHN_LEVEL_DEFAULT,   // Default authentication 
 //       RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation  
 //       NULL,                        // Authentication info
 //       EOAC_NONE,                   // Additional capabilities 
 //       NULL                         // Reserved
 //       );	

	//if (FAILED(hRes))
	//{
	//	std::cout << "Failed to initialize security. Error code = 0x" << std::hex << hRes << std::endl;
	//	CoUninitialize();
	//}

	IWbemLocator* pIWbemLocator = NULL;
	IWbemServices* pWbemServices = NULL;
	BSTR bstrNamespace = (L"root\\cimv2");
	hRes = CoCreateInstance(
	  CLSID_WbemAdministrativeLocator,
	  NULL,
	  CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER, 
	  IID_IUnknown,
	  (void **)&pIWbemLocator
	  );

	if (SUCCEEDED(hRes))
	{
	  hRes = pIWbemLocator->ConnectServer(
		  L"root\\cimv2", // Namespace
		  NULL, // Userid
		  NULL, // PW
		  NULL, // Locale
		  0, // flags
		  NULL, // Authority
		  NULL, // Context
		  &pWbemServices
	  );
	}

	// Format query
	query = "SELECT * FROM Win32_NetworkAdapter " + query;
	BSTR bsQuery = ConvertStringToBSTR(query.c_str());

	IEnumWbemClassObject* pEnumrator = NULL;
	hRes = pWbemServices->ExecQuery(L"WQL", bsQuery, WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumrator);

	if (FAILED(hRes))
	{
		std::cout << "Failed pWbemServices->ExecQuery. Error code = 0x" << std::hex << hRes << std::endl;
		CoUninitialize();
	}

	IWbemClassObject* pClassObject[128] = {0};
	ULONG uReturned;
	hRes = pEnumrator->Reset();
	hRes = pEnumrator->Next(WBEM_INFINITE, 128, pClassObject, &uReturned);
	if (FAILED(hRes))
	{
		std::cout << "Failed pEnumObject->Next. Error code = 0x" << std::hex << hRes << std::endl;
		CoUninitialize();
	}	

	// Fill the vector
	for (int i = 0; i < uReturned; i++)
	{
		_variant_t guid;
		pClassObject[i]->Get(L"GUID", 0, &guid, NULL, NULL);

		//vNetworkAdapters.push_back(new NetworkAdapter(std::string(_com_util::ConvertBSTRToString(guid.bstrVal))));

		if (guid.vt == VT_BSTR)
		{
			//NetworkAdapter na(std::string(_com_util::ConvertBSTRToString(guid.bstrVal)));
			//vAdapters.push_back(new NetworkAdapter("{D15F65F4-27C5-4548-8705-B50B5B360737}"));
			char* chBuf = ConvertBSTRToString(guid.bstrVal);
			vAdapters.push_back(new NetworkAdapter(std::string(chBuf)));
//.........这里部分代码省略.........
开发者ID:sippeangelo，项目名称:wlanauto，代码行数:101，代码来源:NetworkAdapterFactory.cpp


注：本文中的IEnumWbemClassObject::Reset方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。