1
我想使用WMI獲取計算機上除活動分區以外的所有分區的系統盤符，這是我迄今爲止所提出的（我不知道如何獲得驅動器盤符&如何檢查，如果他們都HDD或系統驅動，所以我不要在這裏任何CD-ROM）：在vC++中使用WMI枚舉分區驅動器盤符
std::vector<CString> GetPartitionsVector(bool bCoInit = false )
{
std::vector<CString> partVect;
HRESULT hres = NULL;
if(bCoInit)
{
hres = CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
goto end_routine;
}
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))
{
goto end_routine;
}
}
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *) &pLoc);
if (FAILED(hres))
{
goto end_routine;
}
IWbemServices *pSvc = NULL;
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 (e.g. Kerberos)
0, // Context object
&pSvc // pointer to IWbemServices proxy
);
if (FAILED(hres))
{
goto end_routine;
}
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))
{
goto end_routine;
}
// 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_DiskPartition"), // Win32_DiskPartition
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
goto end_routine;
}
// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------
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"BootPartition", 0, &vtProp, 0, 0);
if(!vtProp.boolVal) //if this is not boot partition, get some more
{
hr = pclsObj->Get(L"BootPartition", 0, &vtProp, 0, 0);
if(FAILED(hr))
{
//log here
}
hr = pclsObj->Get(L"SystemName", 0, &vtProp, 0, 0);
if(!FAILED(hr))
partVect.push_back(vtProp.bstrVal);
}
VariantClear(&vtProp);
pclsObj->Release();
}
// Cleanup
// ========
pSvc->Release();
pLoc->Release();
pEnumerator->Release();
end_routine:
if(bCoInit)
{
CoUninitialize();
}
return partVect;
}
你有使用WMI？ [此鏈接]（http://msdn.microsoft.com/en-us/library/cc542456（VS.85）.aspx）使用卷管理API執行此操作。 –
搜索「WMI驅動器號」的MSDN也很有用。 –
這看起來不錯，但我一直在做另一種方式..不一定是你建議的和我的應用程序在測試中崩潰，因爲某些系統缺少某些DLL ......使用WMI不會導致應用程序崩潰，所以這就是爲什麼我選擇這種方式，我也會嘗試你所建議的方式。 – AlexandruC