c++ - 如何在 Windows 设备管理器中获取带有黄色感叹号的设备列表 - C++

Question

我正在使用 msdn WMI 示例代码来获取设备管理器中显示的带有黄色感叹号的设备列表，但它只返回所有正确的列表机器上安装的设备。这里的任何人都可以帮助我仅使用 C++ 解决这个问题。谢谢

    void GetUnKnownDeviceList()
{
    HRESULT hres;
    hres =  CoInitializeEx(0, COINIT_MULTITHREADED); 

    hres =  CoInitializeSecurity(NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_DEFAULT,
                                 RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, NULL); 

    IWbemLocator *pLoc = 0;
    hres = CoCreateInstance( CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLoc);
    IWbemServices *pSvc = 0;                  

    hres = pLoc->ConnectServer(_bstr_t(L"ROOT\\CIMV2"),NULL,NULL,0,NULL,0,0,&pSvc);

    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);       

    IEnumWbemClassObject* pEnumerator = NULL;    
    hres = pSvc->ExecQuery(
            bstr_t("WQL"), 
            // bstr_t("SELECT * FROM Win32_PnPEntity"), DOES NOT LIST DEVICES SHOWING WITH YELLOW EXCLAMATION MARK
            bstr_t("SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode = 0"), // LIST ONLY PROPERLY INSTALLED DEVICES
            WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 
            NULL,
            &pEnumerator);

    IWbemClassObject *pclsObj;
    ULONG uReturn = 0;
    while(1)
    {
        HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);
        VARIANT vtProp;
        hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);
        TRACE("Device Name : %s\r\n\", vtProp.bstrVal);
        VariantClear(&vtProp);
        pclsObj->Release();
   }    

}

Answer 1

要列出不工作的设备，您需要查询 ConfigManagerErrrorCode 不是 0 的所有设备，您必须将 WQL 语句修改为。

SELECT * FROM Win32_PnPEntity WHERE ConfigManagerErrorCode <> 0