获取硬盘序列号的C++代码

    // GetHardDiskNum.cpp : 定义控制台应用程序的入口点。  
    //  
      
    #include "stdafx.h"  
      
    #ifndef _WIN32_WINNT  
    #define _WIN32_WINNT 0x0501  
    #endif  
      
    #include <windows.h>  
    #include <winioctl.h>  
      
    //  
    BOOL GetPhyDriveSerial(LPTSTR pModelNo, LPTSTR pSerialNo);  
    void ToLittleEndian(PUSHORT pWords, int nFirstIndex, int nLastIndex, LPTSTR pBuf);  
    void TrimStart(LPTSTR pBuf);  
      
    //  
    // Model Number: 40 ASCII Chars  
    // SerialNumber: 20 ASCII Chars  
    //  
    BOOL GetPhyDriveSerial(LPTSTR pModelNo,LPTSTR pSerialNo)  
    {  
        //-1是因为 SENDCMDOUTPARAMS 的结尾是 BYTE bBuffer[1];  
        BYTE IdentifyResult[sizeof(SENDCMDOUTPARAMS) + IDENTIFY_BUFFER_SIZE - 1];  
        DWORD dwBytesReturned;  
        GETVERSIONINPARAMS get_version;  
        SENDCMDINPARAMS send_cmd = { 0 };  
      
        HANDLE hFile = CreateFile(_T("\\\\.\\PHYSICALDRIVE0"), GENERIC_READ | GENERIC_WRITE,      
            FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);  
        if(hFile == INVALID_HANDLE_VALUE)  
            return FALSE;  
      
        //get version  
        DeviceIoControl(hFile, SMART_GET_VERSION, NULL, 0,  
            &get_version, sizeof(get_version), &dwBytesReturned, NULL);  
      
        //identify device  
        send_cmd.irDriveRegs.bCommandReg = (get_version.bIDEDeviceMap & 0x10)? ATAPI_ID_CMD : ID_CMD;  
        DeviceIoControl(hFile, SMART_RCV_DRIVE_DATA, &send_cmd, sizeof(SENDCMDINPARAMS) - 1,  
            IdentifyResult, sizeof(IdentifyResult), &dwBytesReturned, NULL);  
        CloseHandle(hFile);  
      
        //adjust the byte order  
        PUSHORT pWords = (USHORT*)(((SENDCMDOUTPARAMS*)IdentifyResult)->bBuffer);  
        ToLittleEndian(pWords, 27, 46, pModelNo);  
        ToLittleEndian(pWords, 10, 19, pSerialNo);  
        return TRUE;  
    }  
      
    //把WORD数组调整字节序为little-endian，并滤除字符串结尾的空格。  
    void ToLittleEndian(PUSHORT pWords, int nFirstIndex, int nLastIndex, LPTSTR pBuf)  
    {  
        int index;  
        LPTSTR pDest = pBuf;  
        for(index = nFirstIndex; index <= nLastIndex; ++index)  
        {  
            pDest[0] = pWords[index] >> 8;  
            pDest[1] = pWords[index] & 0xFF;  
            pDest += 2;  
        }      
        *pDest = 0;  
      
        //trim space at the endof string; 0x20: _T(' ')  
        --pDest;  
        while(*pDest == 0x20)  
        {  
            *pDest = 0;  
            --pDest;  
        }  
    }  
      
    //滤除字符串起始位置的空格  
    void TrimStart(LPTSTR pBuf)  
    {  
        if(*pBuf != 0x20)  
            return;  
      
        LPTSTR pDest = pBuf;  
        LPTSTR pSrc = pBuf + 1;  
        while(*pSrc == 0x20)  
            ++pSrc;  
      
        while(*pSrc)  
        {  
            *pDest = *pSrc;  
            ++pDest;  
            ++pSrc;  
        }  
        *pDest = 0;  
    }  
      
      
    int _tmain(int argc, _TCHAR* argv[])  
    {  
        TCHAR szModelNo[48], szSerialNo[24];  
        if(GetPhyDriveSerial(szModelNo, szSerialNo))  
        {  
            _tprintf(_T("Model No: %s\n"), szModelNo);  
            TrimStart(szSerialNo);  
            _tprintf(_T("Serial No: %s\n"), szSerialNo);  
        }  
        else  
        {  
            _tprintf(_T("Failed.\n"));  
        }  
        getchar();  
        return 0;  
      
        return 0;  
    }