C / C++ / MFC

HRESULT                 hr;
_variant_t              v;
ULONG                   ulReturned;
DWORD                   dwAuthLevel;
IWbemLocator            *pLocator;
IWbemServices           *pService = NULL;
IEnumWbemClassObject    *pEnum = NULL;
IWbemClassObject        *pClass;
 
hr = CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLocator);
if (S_OK == hr)
{
    hr = pLocator->ConnectServer(_bstr_t(L"root\\cimv2"), NULL, NULL, NULL, NULL, 0, NULL, &pService);
    if (WBEM_S_NO_ERROR == hr)
    {
        hr = CoQueryProxyBlanket(pService, NULL, NULL, NULL, &dwAuthLevel, NULL, NULL, NULL);
        hr = CoSetProxyBlanket(pService, RPC_C_AUTHN_DEFAULT, RPC_C_AUTHZ_NONE, NULL, dwAuthLevel, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE);
 
        hr = pService->CreateInstanceEnum(_bstr_t("Win32_Baseboard"), WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY, NULL, &pEnum);
        if (WBEM_S_NO_ERROR == hr)
        {
            do
            {
                hr = pEnum->Next(WBEM_INFINITE, 1, &pClass, &ulReturned);
                if (WBEM_S_NO_ERROR == hr)
                {
                    hr = pClass->Get(L"Caption", 0, &v, NULL, NULL);
                    if (VT_NULL != v.vt)
                        TRACE("Caption = %S\n", V_BSTR(&v));                            
                
                    hr = pClass->Get(L"ConfigOptions", 0, &v, NULL, NULL);
                    if (VT_NULL != v.vt)
                    {
                        LONG lBound;
                        BSTR Value;
                        SafeArrayGetUBound(V_ARRAY(&v), 1, &lBound);
                        while (lBound >= 0)
                        {
                            SafeArrayGetElement(V_ARRAY(&v), &lBound, &Value);
                            TRACE("ConfigOptions[%u] = %S\n", lBound, Value);
                            lBound--;
                        }
                    }
 
                    hr = pClass->Get(L"Depth", 0, &v, NULL, NULL);
                    if (VT_NULL != v.vt)
                        TRACE("Depth = %f\n", V_R4(&v));
 
                    pClass->Release();
                }
            } while (WBEM_S_NO_ERROR == hr);
 
            pEnum->Release();
        }
 
        pService->Release();
    }
 
    pLocator->Release();
}

((CMainFrame *) AfxGetMainWnd())->OnStartRenderView();