WMI HD序列号查询返回\\.\PHYSICALDRIVE0而不是实数 [英] WMI HD serial number query returns \\.\PHYSICALDRIVE0 instead of the real number

问题描述

大家好，



我创建了一个C ++代码来使用WMI获取硬盘序列号，但不是获取序列号我得到一个字符串：



\\.\PHYSICALDRIVE0

但是我期待的是：

BCB1-45BB



谁能告诉我这个结果以及如何获得真实的序列号？



这是我使用的代码：

Hi Everyone,

I created a C++ code to get the Hard Disk Serial Number using WMI, however instead of getting the serial Number I get a string with:

\\.\PHYSICALDRIVE0
but I was expecting something like:
BCB1-45BB

Who can explain me this result and how to obtain the real serial number?

Here is the code I used:

#define _WIN32_DCOM
#include <iostream>

#include <comdef.h>
#include <wbemidl.h>



int main(int argc, char **argv)
{
    HRESULT hres;

    // Step 1: --------------------------------------------------
    // Initialize COM. ------------------------------------------

    hres =  CoInitializeEx(0, COINIT_MULTITHREADED); 
    if (FAILED(hres))
    {
        std::cout << "Failed to initialize COM library. Error code = 0x" 
            << std::hex << hres << std::endl;
        return 1;                  // Program has failed.
    }

    // Step 2: --------------------------------------------------
    // Set general COM security levels --------------------------
    // Note: If you are using Windows 2000, you need to specify -
    // the default authentication credentials for a user by using
    // a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
    // parameter of CoInitializeSecurity ------------------------

    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))
    {
        std::cout << "Failed to initialize security. Error code = 0x" 
            << std::hex << hres << std::endl;
        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))
    {
        std::cout << "Failed to create IWbemLocator object."
            << " Err code = 0x"
            << std::hex << hres << std::endl;
        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 (e.g. Kerberos)
         0,                       // Context object 
         &pSvc                    // pointer to IWbemServices proxy
         );
    
    if (FAILED(hres))
    {
        std::cout << "Could not connect. Error code = 0x" 
             << std::hex << hres << std::endl;
        pLoc->Release();     
        CoUninitialize();
        return 1;                // Program has failed.
    }

    std::cout << "Connected to ROOT\\CIMV2 WMI namespace" << std::endl;


    // 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))
    {
        std::cout << "Could not set proxy blanket. Error code = 0x" 
            << std::hex << hres << std::endl;
        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_DiskDrive"),
        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 
        NULL,
        &pEnumerator);
    
    if (FAILED(hres))
    {
        std::cout << "Query for operating system name failed."
            << " Error code = 0x" 
            << std::hex << hres << std::endl;
        pSvc->Release();
        pLoc->Release();
        CoUninitialize();
        return 1;               // Program has failed.
    }

    // 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;

        
		std::cout << "----------------------------------" << std::endl;
		std::cout << "Retrieve DISK Info" << std::endl;
		std::cout << "----------------------------------" << std::endl;
       // Get the value of the Name property
        hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);
        std::wcout << " Disk Name : " << vtProp.bstrVal << std::endl;
        VariantClear(&vtProp);

		hr = pclsObj->Get(L"Model", 0, &vtProp, 0, 0);
        std::wcout << " Disk Model : " << vtProp.bstrVal << std::endl;
        VariantClear(&vtProp);

		 hr = pclsObj->Get(L"Status", 0, &vtProp, 0, 0);
        std::wcout << " Status : " << vtProp.bstrVal << std::endl;
        VariantClear(&vtProp);

		hr = pclsObj->Get(L"DeviceID", 0, &vtProp, 0, 0);
        std::wcout << " Device ID : " << vtProp.bstrVal << std::endl;
        VariantClear(&vtProp);

		hr = pclsObj->Get(L"SerialNumber", 0, &vtProp, 0, 0);
        std::wcout << " SerialNumber : " << vtProp.bstrVal << std::endl;
        VariantClear(&vtProp);

			hr = pclsObj->Get(L"InterfaceType", 0, &vtProp, 0, 0);
        std::wcout << " InterfaceType : " << vtProp.bstrVal << std::endl;
        VariantClear(&vtProp);
		
		std::cout << "----------------------------------" << std::endl;
        pclsObj->Release();
    }

    
    pSvc->Release();
    pLoc->Release();
    pEnumerator->Release();
    CoUninitialize();

    return 0;   // Program successfully completed.
	
}</wbemidl.h></comdef.h></iostream>

这是输出：

This is the Output:

Connected to ROOT\CIMV2 WMI namespace
----------------------------------
Retrieve DISK Info
----------------------------------
 Disk Name : \\.\PHYSICALDRIVE0 
 Disk Model : IC35L080AVVA07-0
 Status : OK
 Device ID : \\.\PHYSICALDRIVE0 
 SerialNumber : \\.\PHYSICALDRIVE0 
 InterfaceType : IDE
----------------------------------

谢谢，
$ b $bApóstolo

Thanks,
Apóstolo

推荐答案

这是我的代码：



IWbemClassObject * pclsObj ;

ULONG uReturn = 0;



while（pEnumerator）

{

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

if（！uReturn）

{

break;

}



VARIANT vtProp;

VariantInit（&vtProp）;



vDiskDriveInfoList.push_back（HardDiskDriveInfo（））;



HardDiskDriveInfo&rhddi = * vDiskDriveInfoList.rbegin（） ;



pclsObj-> BeginEnumeration（WBEM_FLAG_NONSYSTEM_ONLY）;

{

CIMTYPE pvtType;

VARIANT pVal;

BSTR pstrName;



while（pclsObj-> Next（0，&pstrName，&pVal，&pvtType，NULL）== WBEM_S_NO_ERROR）

{

CString strName =（LPCTSTR）（_ bstr_t）pstrName;



if（strName.Compare（_T（SerialNumber））== 0 && pVal .vt == VT_BSTR）

{

rhddi.strSerialNumber =（LPCTSTR）（_ bstr_t）pVal.bstrVal;

rhddi.strSerialNumber.Trim （）;

}

else if（strName.Compare（_T（FirmwareRevision））== 0 && pVal.vt == VT_BSTR）

{

rhddi.strFirmwareRevision =（LPCTSTR）（_ bstr_t）pVal.bstrVal;

rhddi.strFirmwareRevision.Trim（）;

}

else if（strName.Compare（_T（MediaType））== 0 && pVal.vt == VT_BSTR）

{

rhddi.strMediaType =（LPCTSTR）（_ bstr_t）pVal.bstrVal;

rhddi.strMediaType.Trim（）;

}

else if （strName.Compare（_T（InterfaceType））== 0 && pVal.vt == VT_ BSTR）

{

rhddi.strInterfaceType =（LPCTSTR）（_ bstr_t）pVal.bstrVal;

rhddi.strInterfaceType.Trim（）; < br $>
}



SysFreeString（pstrName）;

VariantClear（&pVal）;

}

}

}

this is my code:

IWbemClassObject *pclsObj;
ULONG uReturn = 0;

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

VARIANT vtProp;
VariantInit( &vtProp );

vDiskDriveInfoList.push_back(HardDiskDriveInfo());

HardDiskDriveInfo& rhddi = *vDiskDriveInfoList.rbegin();

pclsObj->BeginEnumeration( WBEM_FLAG_NONSYSTEM_ONLY );
{
CIMTYPE pvtType;
VARIANT pVal;
BSTR pstrName;

while(pclsObj->Next(0, &pstrName, &pVal, &pvtType, NULL) == WBEM_S_NO_ERROR)
{
CString strName = (LPCTSTR)(_bstr_t)pstrName;

if (strName.Compare(_T("SerialNumber")) == 0 && pVal.vt == VT_BSTR)
{
rhddi.strSerialNumber = (LPCTSTR)(_bstr_t)pVal.bstrVal;
rhddi.strSerialNumber.Trim();
}
else if (strName.Compare(_T("FirmwareRevision")) == 0 && pVal.vt == VT_BSTR)
{
rhddi.strFirmwareRevision = (LPCTSTR)(_bstr_t)pVal.bstrVal;
rhddi.strFirmwareRevision.Trim();
}
else if (strName.Compare(_T("MediaType")) == 0 && pVal.vt == VT_BSTR)
{
rhddi.strMediaType = (LPCTSTR)(_bstr_t)pVal.bstrVal;
rhddi.strMediaType.Trim();
}
else if (strName.Compare(_T("InterfaceType")) == 0 && pVal.vt == VT_BSTR)
{
rhddi.strInterfaceType = (LPCTSTR)(_bstr_t)pVal.bstrVal;
rhddi.strInterfaceType.Trim();
}

SysFreeString(pstrName);
VariantClear( &pVal );
}
}
}

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