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我已經編寫了一些代碼來初始化COM並通過使用WMI查詢Win32_NetworkAdapter類來枚舉連接到PC的網絡適配器。我需要使用WMI的原因是我需要枚舉的適配器在此時被禁用,但我仍然需要找出它的InterfaceIndex,並使用GetInterfaceInfo只檢測啓用的適配器。這一切都編譯和運行,但在行:在C++中使用WMI來獲取適配器的InterfaceIndex
hr = pEnumerator->Next(WBEM_INFINITE, 1, &pClassObj, &ulReturnVal);
這意味着要檢索第一個適配器,它不返回設備和垃圾HRESULT。我使用this頁面上的示例作爲我的指導。
CoInitialize(NULL); // Initialize COM
HRESULT hr = NULL;
hr = CoInitializeSecurity(
NULL, // security descriptor
-1, // use this simple setting
NULL, // use this simple setting
NULL, // reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // authentication level
RPC_C_IMP_LEVEL_IMPERSONATE, // impersonation level
NULL, // use this simple setting
EOAC_NONE, // no special capabilities
NULL); // reserved
if (FAILED(hr))
{
CoUninitialize();
return -1;
}
IWbemLocator *pLoc = 0;
hr = CoCreateInstance(CLSID_WbemLocator, 0,
CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLoc);
if (FAILED(hr))
{
CoUninitialize();
return -1; // Program has failed.
}
IWbemServices *pSvc = 0;
// Connect to the root\default namespace with the current user.
hr = pLoc->ConnectServer(_bstr_t(L"ROOT\\CIMV2"), NULL, NULL, 0, NULL, 0, 0, &pSvc);
if (FAILED(hr))
{
pLoc->Release();
CoUninitialize();
return -1; // Program has failed.
}
hr = CoSetProxyBlanket(pSvc, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, NULL, RPC_C_AUTHN_LEVEL_CALL,
RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE);
if (FAILED(hr))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return -1; // Program has failed.
}
IEnumWbemClassObject* pEnumerator = NULL;
hr = pSvc->ExecQuery(bstr_t("WQL"), bstr_t("SELECT * FROM Win32_NetworkAdapter"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumerator);
if (FAILED(hr))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return -1;
}
IWbemClassObject *pClassObj;
ULONG ulReturnVal;
while (pEnumerator)
{
hr = pEnumerator->Next(WBEM_INFINITE, 1, &pClassObj, &ulReturnVal);
// code would go here to obtain the adapter properties.
pClassObj->Release();
}
return -1;
您似乎已經忽略了Win32_NetworkAdapter類的棄用。你有沒有嘗試過替代品,MSFT_NetAdapter? – rrirower
嗯,我們有另一個庫,它使用Win32_NetworkAdapter類,但在C#中,並在同一平臺上工作,所以肯定不能棄用? –