如何选择WMI以上的查询

Question

您好我正在使用Visual Studio C ++。

这将解释很多：

IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
    bstr_t("WQL"), 
    bstr_t("SELECT SerialNumber FROM Win32_DiskDrive"),
    WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 
    NULL,
    &pEnumerator);

if (FAILED(hres))
{
    cout << "Query for harddisk sn failed."
        << " Error code = 0x" 
        << hex << hres << endl;
    pSvc->Release();
    pLoc->Release();
    CoUninitialize();
    return 1;               // Program has failed.
}

IWbemClassObject *pclsObj;
ULONG uReturn = 0;

while (pEnumerator)
{
    HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, 
        &pclsObj, &uReturn);

    if(0 == uReturn)
    {
        break;
    }

    VARIANT vtProp;

    // Get the value of the Name property
    hr = pclsObj->Get(L"SerialNumber", 0, &vtProp, 0, 0);
    wcout << "HDD SN : " << vtProp.bstrVal << endl;
    VariantClear(&vtProp);

    pclsObj->Release();
}

这将是Cout Harddisk的序列号。我的主要问题是如何同时选择多个查询以便我可以输出多个结果

我需要添加例如“SELECT SerialNumber FROM Win32_BaseBoard”并同时输出HDD和主板序列号

帮助xD

Answer 1

WQL不会同时支持多于WMI类的查询。因此，您必须为每个类调用ExecQuery方法。