CPU Temp auslesen

hundsmiachn

Hallo

Ich versuche gerade die CPU Temp mit Hilfe von WMI in meiner MFC App auszulesen.
Leider bricht er aber immer in folgender Zeile ab d.h. der returnwert ist -2191454919 oder so ähnlich, also nicht S_OK (pClassObject ist NULL danach)

hRes = pEnumObject->Next(WBEM_INFINITE,uCount, &pClassObject, &uReturned);

Hier ist der komplette Code den ich benutze:

void CFFMpeg_guiDlg::ReadCPUTemp ()
{
  HRESULT hr = CoInitializeEx (0, COINIT_MULTITHREADED); 
  if (FAILED (hr)) 
  {
    return;
  }

  IWbemLocator* pIWbemLocator = NULL;
  IWbemServices* pWbemServices = NULL;
  IEnumWbemClassObject* pEnumObject = NULL;

  if (CoCreateInstance (CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pIWbemLocator) != S_OK)
    return;

  if (pIWbemLocator->ConnectServer ( CComBSTR (L"ROOT\\WMI"), NULL, NULL, 0, NULL, 0, 0, &pWbemServices) != S_OK)
    return;

  HRESULT hRes;
  hRes = pWbemServices->ExecQuery (CComBSTR (L"WQL"), CComBSTR (L"SELECT * FROM MSAcpi_ThermalZoneTemperature"),WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumObject); 
  if (hRes != S_OK)
  {
    return;
  }

  hRes = pEnumObject->Reset();
  if (hRes != S_OK)
  {
    return;
  }

  ULONG uCount = 1, uReturned;
  IWbemClassObject* pClassObject;
-->  hRes = pEnumObject->Next(WBEM_INFINITE,uCount, &pClassObject, &uReturned);
  if(hRes != S_OK)
  {
    return;
  }

  VARIANT v;
  int i = 0;
  BSTR strClassProp = SysAllocString(L"CurrentTemperature");
  hRes = pClassObject->Get(strClassProp, 0, &v, 0, 0);
  if (hRes != S_OK)
  {
    MessageBox("Could not Get Value");
    return;
  }

  SysFreeString(strClassProp);
//   _bstr_t bstrpath = &v; //just to convert bstr to ansi
//   char* strpath=(char*)bstrpath;
// 
//   if (succeeded(hres))
//     messagebox(strpath);
//   else
//     messagebox("error in getting object");

  VariantClear(&v);
  pIWbemLocator->Release();
  pWbemServices->Release();
  pEnumObject->Release();
  pClassObject->Release();
  CoUninitialize();
}

Wäre für ein paar Tips dankbar
mfg
Erich