Method query

wmi/wmi.cpp:140–294

}

HRESULT Wmi::query(std::string queryStr, std::vector<QueryObj>& queryVectorOut, const AdditionalFilters* filters)
{
    if (pSvc == nullptr)
    {
        return E_FAIL;
    }

    HRESULT hres;
    int nIdx = 0;
    IEnumWbemClassObject* pEnumerator = nullptr;

    // Initialize COM. ------------------------------------------
    hres = CoInitializeEx(0, COINIT_APARTMENTTHREADED);
    if (FAILED(hres))
    {
        return hres;
    }

    pSvc->Release();
    // Reconnect to server before each query as we were seeing disconnected failures
    hres = pLoc->ConnectServer(
        _bstr_t(L"ROOT\\CIMV2"), // Object path of WMI namespace
        nullptr,                    // User name. NULL = current user
        nullptr,                    // User password. NULL = current
        nullptr,                 // Locale. NULL indicates current
        0,                    // Security flags.
        nullptr,                 // Authority (for example, Kerberos)
        nullptr,                 // Context object
        &pSvc                    // pointer to IWbemServices proxy
    );

    // Make the WMI query
    hres = pSvc->ExecQuery(
        bstr_t("WQL"),
        bstr_t(queryStr.c_str()),
        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
        nullptr,
        &pEnumerator
    );

    if (FAILED(hres))
    {
        return hres;
    }

    IWbemClassObject* pclsObj = nullptr;
    ULONG uReturn = 0;

    while (pEnumerator)
    {
        hres = pEnumerator->Next(WMI_WAIT_TIME, 1, &pclsObj, &uReturn);

        if (0==uReturn)
        {
        break;
        }

        VARIANT vtProp;