读取硬盘的物理序列号

核心提示： 读取硬盘的物理序列号//获得硬盘序列号function GetIdeSerialNumber() : PChar; stdcall;const IDENTIFY_BUFFER_SIZE = 512;type TIDERegs = packed record bFeaturesReg: BYTE; // Used

 

读取硬盘的物理序列号

//获得硬盘序列号
function GetIdeSerialNumber() : PChar; stdcall;
const
  IDENTIFY_BUFFER_SIZE = 512;
type
  TIDERegs = packed record
　　 bFeaturesReg: BYTE; // Used for specifying SMART "commands".
　　 bSectorCountReg: BYTE; // IDE sector count register
　　 bSectorNumberReg: BYTE; // IDE sector number register
　　 bCylLowReg: BYTE; // IDE low order cylinder value
　　 bCylHighReg: BYTE; // IDE high order cylinder value
　　 bDriveHeadReg: BYTE; // IDE drive/head register
　　 bCommandReg: BYTE; // Actual IDE command.
　　 bReserved: BYTE; // reserved for future use. Must be zero.
  end;

  TSendCmdInParams = packed record
　  // Buffer size in bytes
　  cBufferSize: DWord;
　  // Structure with drive register values.
　  irDriveRegs: TIDERegs;
　  // Physical drive number to send command to (0,1,2,3).
　  bDriveNumber: BYTE;
　  bReserved: array[0..2] of Byte;
　  dwReserved: array[0..3] of DWORD;
　  bBuffer: array[0..0] of Byte; // Input buffer.
  end;

  TIdSector = packed record
　  wGenConfig: Word;
　  wNumCyls: Word;
　  wReserved: Word;
　  wNumHeads: Word;
　  wBytesPerTrack: Word;
　  wBytesPerSector: Word;
　  wSectorsPerTrack: Word;
　  wVendorUnique: array[0..2] of Word;
　  sSerialNumber: array[0..19] of CHAR;
　  wBufferType: Word;
　  wBufferSize: Word;
　  wECCSize: Word;
　  sFirmwareRev: array[0..7] of Char;
　  sModelNumber: array[0..39] of Char;
　  wMoreVendorUnique: Word;
　  wDoubleWordIO: Word;
　  wCapabilities: Word;
　  wReserved1: Word;
　  wPIOTiming: Word;
　  wDMATiming: Word;
　  wBS: Word;
　  wNumCurrentCyls: Word;
　  wNumCurrentHeads: Word;
　  wNumCurrentSectorsPerTrack: Word;
　  ulCurrentSectorCapacity: DWORD;
　  wMultSectorStuff: Word;
　  ulTotalAddressableSectors: DWORD;
　  wSingleWordDMA: Word;
　  wMultiWordDMA: Word;
　  bReserved: array[0..127] of BYTE;
  end;

  PIdSector = ^TIdSector;

  TDriverStatus = packed record
　  // 驱动器返回的错误代码，无错则返回0
　  bDriverError: Byte;
　  // IDE出错寄存器的内容，只有当bDriverError 为 SMART_IDE_ERROR 时有效
　  bIDEStatus: Byte;
　  bReserved: array[0..1] of Byte;
　  dwReserved: array[0..1] of DWORD;
  end;

  TSendCmdOutParams = packed record
　  // bBuffer的大小
　  cBufferSize: DWORD;
　  // 驱动器状态
　  DriverStatus: TDriverStatus;
　  // 用于保存从驱动器读出的数据的缓冲区，实际长度由cBufferSize决定
　  bBuffer: array[0..0] of BYTE;
  end;
var
  hDevice : THandle;
  cbBytesReturned : DWORD;
  SCip : TSendCmdInParams;
  aIdOutCmd : array[0..(SizeOf(TSendCmdOutParams) + IDENTIFY_BUFFER_SIZE - 1) - 1] of Byte;
  IdOutCmd : TSendCmdOutParams absolute aIdOutCmd;

  PRocedure ChangeByteOrder(var Data; Size: Integer);
  var
　  ptr : PChar;
　  i : Integer;
　  c : Char;
  begin
　  ptr := @Data;

　  for I := 0 to (Size shr 1) - 1 do
　  begin
　　  c := ptr^;
　　  ptr^ := (ptr + 1)^;
　　  (ptr + 1)^ := c;
　　  Inc(ptr, 2);
　  end;
  end;
begin
  Result := ''; // 如果出错则返回空串

  if SysUtils.Win32Platform = VER_PLATFORM_WIN32_NT then  // Windows NT, Windows 2000
  begin
　  // 提示! 改变名称可适用于其它驱动器，如第二个驱动器： '\\.\PhysicalDrive1\'
　  hDevice := CreateFile('\\.\PhysicalDrive0', GENERIC_READ or GENERIC_WRITE,
　　　　　　　　　　　　  FILE_SHARE_READ or FILE_SHARE_WRITE, nil, OPEN_EXISTING, 0, 0);
  end
  else // Version Windows 95 OSR2, Windows 98
　  hDevice := CreateFile('\\.\SMARTVSD', 0, 0, nil, CREATE_NEW, 0, 0);

　  if hDevice = INVALID_HANDLE_VALUE then Exit;

　  try
　　  FillChar(SCIP, SizeOf(TSendCmdInParams) - 1, #0);
　　  FillChar(aIdOutCmd, SizeOf(aIdOutCmd), #0);
　　  cbBytesReturned := 0;

　　  // Set up data structures for IDENTIFY command.
　　  with SCIP do
　　  begin
　　　  cBufferSize := IDENTIFY_BUFFER_SIZE;

　　　  // bDriveNumber := 0;
　　　  with irDriveRegs do
　　　  begin
　　　　  bSectorCountReg := 1;
　　　　  bSectorNumberReg := 1;

　　　　  // if Win32Platform=VER_PLATFORM_WIN32_NT then bDriveHeadReg := $A0
　　　　  // else bDriveHeadReg := $A0 or ((bDriveNum and 1) shl 4);
　　　　  bDriveHeadReg := $A0;
　　　　  bCommandReg := $EC;
　　　  end;
　　  end;

　　  if not DeviceIoControl(hDevice, $0007C088, @SCIP, SizeOf(TSendCmdInParams) - 1,
　　　　　　　　　　　　　  @aIdOutCmd, SizeOf(aIdOutCmd), cbBytesReturned, nil) then Exit;
　  finally
　　  CloseHandle(hDevice);
　  end;

　  with PIdSector(@IdOutCmd.bBuffer)^ do
　  begin
　　  ChangeByteOrder(sSerialNumber, SizeOf(sSerialNumber));
　　  (Pchar(@sSerialNumber) + SizeOf(sSerialNumber))^ := #0;

　　  Result := Pchar(@sSerialNumber);

　　  end;
end;