我正在尝试获取与每个网络适配器关联的速度和IP地址。我曾经Win32_NetworkAdapter和Win32_NetworkAdapterConfiguration，但根据MDSN，这个类已被弃用，并且已经实现了msft_netadapter。当我尝试使用这个类时，我在以下语句中得到0：
HRESULT hr = pEnumerator-＆gt; Next（WBEM_INFINITE，1， ＆amp; pclsObj，＆amp; uReturn）;
以下是供您参考的代码：
HRESULT hres;
VARIANT activeAdapterGuid;
activeAdapterGuid.bstrVal = _T("");
bool COMIsLoaded = false;
// Step 1: --------------------------------------------------
// Initialize COM. ------------------------------------------
HRESULT hr = CoInitialize(NULL);
if (FAILED(hr))
{
if (hr != RPC_E_CHANGED_MODE)
{
Utility::PrintFormatMessage(DebugMessageLevel::DBG_MSG_ERROR, GetLastError(), L"Failed to Initilize COM for getting the adapter information - WMI");
}
}
else
{
COMIsLoaded = true;
}
if (!COMIsLoaded)
{
hres = CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
return 1; // Program has failed.
}
// Step 2: --------------------------------------------------
// Set general COM security levels --------------------------
hres = CoInitializeSecurity(
NULL,
-1, // COM authentication
NULL, // Authentication services
NULL, // Reserved
RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication
RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation
NULL, // Authentication info
EOAC_NONE, // Additional capabilities
NULL // Reserved
);
if (FAILED(hres))
{
CoUninitialize();
return 1; // Program has failed.
}
}
// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *)&pLoc);
if (FAILED(hres))
{
CoUninitialize();
return 1; // Program has failed.
}
// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method
IWbemServices *pSvc = NULL;
// Connect to the root\cimv2 namespace with
// the current user and obtain pointer pSvc
// to make IWbemServices calls.
hres = pLoc->ConnectServer(
_bstr_t(L"ROOT\\CIMV2"), // Object path of WMI namespace
NULL, // User name. NULL = current user
NULL, // User password. NULL = current
0, // Locale. NULL indicates current
NULL, // Security flags.
0, // Authority (for example, Kerberos)
0, // Context object
&pSvc // pointer to IWbemServices proxy
);
if (FAILED(hres))
{
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 5: --------------------------------------------------
// Set security levels on the proxy -------------------------
hres = CoSetProxyBlanket(
pSvc, // Indicates the proxy to set
RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx
RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx
NULL, // Server principal name
RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx
RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
NULL, // client identity
EOAC_NONE // proxy capabilities
);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----
// For example, get the name of the operating system
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_NetworkAdapter"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------
IWbemClassObject *pclsObj = NULL;
ULONG uReturn = 0;
while (pEnumerator)
{
NetworkAdapterDefinition networkAdapterDefinition;
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if (0 == uReturn)
{
break;
}
VARIANT vtProp;
hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);
if (vtProp.bstrVal != NULL)
{
networkAdapterDefinition.m_strName =vtProp.bstrVal;
}
else
{
continue;
}
VariantClear(&vtProp);
VariantChangeType(&vtProp, &vtProp, 0, VT_BSTR);
hr = pclsObj->Get(L"Speed", 0, &vtProp, 0, 0);
if (vtProp.bstrVal != NULL)
{
networkAdapterDefinition.m_speed = _wtoi(vtProp.bstrVal);
}
else
{
continue;
}
VariantClear(&vtProp);
VARIANT vtPropConnection;
VariantChangeType(&vtPropConnection, &vtPropConnection, 0, VT_UI2);
hr = pclsObj->Get(L"NetConnectionStatus", 0, &vtPropConnection, 0, 0);
if (vtPropConnection.uiVal != NULL)
{
VARIANT vtProp1;
hr = pclsObj->Get(L"GUID", 0, &vtProp1, 0, 0);
activeAdapterGuid.bstrVal = vtProp1.bstrVal;
}
else
{
continue;
}
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_NetworkAdapterConfiguration"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1; // Program has failed.
}
// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------
IWbemClassObject *pclsObj = NULL;
ULONG uReturn = 0;
while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if (0 == uReturn)
{
break;
}
VariantClear(&vtProp);
VARIANT vtPropConfig;
hr = pclsObj->Get(L"SettingID", 0, &vtPropConfig, 0, 0);
if (vtPropConfig.bstrVal != NULL)
{
//wcout << " Guid of the Adapter: " << vtPropConfig.bstrVal << endl;
if (wcscmp(vtPropConfig.bstrVal, activeAdapterGuid.bstrVal) == 0)
{
BSTR *pbstr = NULL;
_variant_t ipAddress;
hres = pclsObj->Get(L"IPAddress", 0, &ipAddress, NULL, NULL);
if (ipAddress.parray == NULL)
{
continue;
}
LONG lstart, lend;
LONG idx = -1;
HRESULT hr;
SAFEARRAY *sa = V_ARRAY(&ipAddress);
// Get the lower and upper bound
hr = SafeArrayGetLBound(sa, 1, &lstart);
if (FAILED(hr)) return hr;
hr = SafeArrayGetUBound(sa, 1, &lend);
if (FAILED(hr)) return hr;
// loop
hr = SafeArrayAccessData(sa, (void HUGEP**)&pbstr);
if (SUCCEEDED(hr))
{
for (idx = lstart; idx < lend; idx++)
{
BSTR bstrIpAddress;
bstrIpAddress = pbstr[idx];
std::string ipAddress = _bstr_t(bstrIpAddress, false);
networkAdapterDefinition.m_ipAddressList.push_back(ipAddress);
}
std::string adapterGUID = _bstr_t(activeAdapterGuid.bstrVal, false);
m_AdapterDefinition[adapterGUID] = networkAdapterDefinition;
hr = SafeArrayUnaccessData(sa);
if (FAILED(hr)) return hr;
}
}
}
}
}
// Cleanup
// ========
pSvc->Release();
pLoc->Release();
pEnumerator->Release();
CoUninitialize();
return S_OK;
答案 0 :(得分：0)
看看这里： Using WMI in C++ to obtain the InterfaceIndex of an adapter
他们说RPC_C_IMP_LEVEL_IMPERSONATE
RPC_C_IMP_LEVEL_DELEGATE