// 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;        }