取硬盘物理序列号

void ChangeByteOrder (LPSTR lpString ,  int nLen ) { CHAR c ; // 63 63 72 75 6E 2E 63 6F 6D      for ( int i  =  0; i  < nLen ; i  +=  2) { c  = lpString [i ]; lpString [i ]  = lpString [i + 1] ; lpString [i + 1]  = c ; } } //获取硬盘序列号 VOID GetDiskNum (HWND hWnd ) { CHAR szDiskNum [ 40] ={ 0} ; SENDCMDINPARAMS scip  =  {  0 }; CHAR szBuffer [ sizeof (SENDCMDOUTPARAMS )  + IDENTIFY_BUFFER_SIZE ]  =  {  0 }; DWORD dwBytesRet  =  0; HANDLE hDevice =INVALID_HANDLE_VALUE ; hDevice  = CreateFileW (L "\\\\.\\PhysicalDrive0" ,GENERIC_READ  | GENERIC_WRITE ,FILE_SHARE_READ  | FILE_SHARE_WRITE , NULL ,OPEN_EXISTING , 0, 0) ; if (hDevice  == INVALID_HANDLE_VALUE ) { return ; } scip.cBufferSize  = IDENTIFY_BUFFER_SIZE ; scip.irDriveRegs.bSectorCountReg  =  1; scip.irDriveRegs.bSectorNumberReg  =  1; scip.irDriveRegs.bDriveHeadReg  = IDE_ATAPI_IDENTIFY ; scip.irDriveRegs.bCommandReg  = IDE_ATA_IDENTIFY ; if (DeviceIoControl (hDevice , DFP_RECEIVE_DRIVE_DATA , &scip , sizeof (SENDCMDINPARAMS )  -  1, szBuffer , sizeof (szBuffer ), &dwBytesRet , NULL )) { PSENDCMDOUTPARAMS pOut  =  (PSENDCMDOUTPARAMS )szBuffer ; PIDSECTOR pIdSec  =  (PIDSECTOR )(pOut ->bBuffer ); ChangeByteOrder (pIdSec ->sSerialNumber ,  sizeof (pIdSec ->sSerialNumber )); strncpy (szDiskNum , pIdSec ->sSerialNumber ,  20) ;     } SetDlgItemTextA (hWnd ,IDC_STATIC_DISKNUM ,szDiskNum ); return ; }