NULL, 0, &VersionParams,

                               sizeof(VersionParams),

                               &cbBytesReturned, NULL) )

       {       

          if (VersionParams.bIDEDeviceMap > 0)

          {

              BYTE             bIDCmd = 0;   // IDE或者ATAPI识别命令

              SENDCMDINPARAMS  scip;

              // 如果驱动器是光驱，采用命令IDE_ATAPI_IDENTIFY， command,

              // 否则采用命令IDE_ATA_IDENTIFY读取驱动器信息

              bIDCmd = (VersionParams.bIDEDeviceMap >> drive & 0x10)?

                      IDE_ATAPI_IDENTIFY : IDE_ATA_IDENTIFY;

              memset (&scip, 0, sizeof(scip));

              memset (IdOutCmd, 0, sizeof(IdOutCmd));

              // 获取驱动器信息

              if (WinNTGetIDEHDInfo (hPhysicalDriveIOCTL,

                                      &scip,

                                      (PSENDCMDOUTPARAMS)&IdOutCmd,

                                      (BYTE) bIDCmd,

                                      (BYTE) drive,

                                      &cbBytesReturned))

              {

                  int m = 0;

                  USHORT *pIdSector = (USHORT *)

                             ((PSENDCMDOUTPARAMS) IdOutCmd) -> bBuffer;

                  for (m = 0; m < 256; m++)