/********************************************************************created: 2014/02/18author:       baeskypurpose:  Gater user infomation
*********************************************************************/
#include <comdef.h>
#include <Wbemidl.h># pragma comment(lib, "wbemuuid.lib")struct UserInfo
{/** your spec*/
};/** video card and OS */
bool GetUserInfo(UserInfo& Info)
{HRESULT hres;hres =  CoInitialize( NULL );if (FAILED(hres)){return false;                 }hres =  CoInitializeSecurity(NULL, -1,                          NULL,                        NULL,                        RPC_C_AUTHN_LEVEL_DEFAULT,   RPC_C_IMP_LEVEL_IMPERSONATE, NULL,                        EOAC_NONE,                   NULL                         );if (FAILED(hres)){CoUninitialize();return false;                   }IWbemLocator *pLoc = NULL;hres = CoCreateInstance(CLSID_WbemLocator,             0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLoc);if (FAILED(hres)){CoUninitialize();return false;                 }IWbemServices *pSvc = NULL;hres = pLoc->ConnectServer(_bstr_t(L"ROOT\\CIMV2"), NULL,                    NULL,                    0,                       NULL,                    0,                       0,                       &pSvc                    );if (FAILED(hres)){pLoc->Release();     CoUninitialize();return false;               }hres = CoSetProxyBlanket(pSvc,                        RPC_C_AUTHN_WINNT,           RPC_C_AUTHZ_NONE,            NULL,                        RPC_C_AUTHN_LEVEL_CALL,      RPC_C_IMP_LEVEL_IMPERSONATE, NULL,                        EOAC_NONE                    );if (FAILED(hres)){pSvc->Release();pLoc->Release();     CoUninitialize();return false;               }IEnumWbemClassObject* pEnumerator = NULL;hres = pSvc->ExecQuery(bstr_t("WQL"), bstr_t("SELECT * FROM Win32_OperatingSystem"),WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL,&pEnumerator);if (FAILED(hres)){pSvc->Release();pLoc->Release();CoUninitialize();return false;               }IWbemClassObject *pclsObj;ULONG uReturn = 0;while (pEnumerator){HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);if(0 == uReturn){break;}VARIANT vtProp;hr = pclsObj->Get(L"Caption", 0, &vtProp, 0, 0);  //os//vtProp.bstrVal is what you need.//VariantClear(&vtProp);//hr = pclsObj->Get(L"CSDVersion", 0, &vtProp, 0, 0); // example "sp3"//VariantClear(&vtProp);//hr = pclsObj->Get(L"OSArchitecture", 0, &vtProp, 0, 0); // example x64//VariantClear(&vtProp);pclsObj->Release();}pEnumerator->Release();pEnumerator=NULL;hres = pSvc->ExecQuery(bstr_t("WQL"), bstr_t("SELECT * FROM Win32_VideoController"),WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL,&pEnumerator);if (FAILED(hres)){pSvc->Release();pLoc->Release();CoUninitialize();return false;               }while (pEnumerator){HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);if(0 == uReturn){break;}VARIANT vtProp;hr = pclsObj->Get(L"Caption", 0, &vtProp, 0, 0);  //video desc/** .,,,,,,,,,,,,,,,,,,,,,,your logic*/VariantClear(&vtProp);pclsObj->Release();}pEnumerator->Release();pEnumerator=NULL;hres = pSvc->ExecQuery(bstr_t("WQL"), bstr_t("SELECT * FROM Win32_Processor"),WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL,&pEnumerator);if (FAILED(hres)){pSvc->Release();pLoc->Release();CoUninitialize();return false;               }while (pEnumerator){HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);if(0 == uReturn){break;}VARIANT vtProp;hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);  //video desc/** .,,,,,,,,,,,,,,,,,,,,,,your logic*/VariantClear(&vtProp);pclsObj->Release();}pSvc->Release();pLoc->Release();pEnumerator->Release();CoUninitialize();return true;
}