Серийный номер винта

function GetIdeDiskSerialNumber : String;
type
  TSrbIoControl = packed record
    HeaderLength : ULONG;
    Signature : Array[0..7] of Char;
    Timeout : ULONG;
    ControlCode : ULONG;
    ReturnCode : ULONG;
    Length : ULONG;
  end;
  SRB_IO_CONTROL = TSrbIoControl;
  PSrbIoControl = ^TSrbIoControl;

  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;
  IDEREGS = TIDERegs;
  PIDERegs = ^TIDERegs;

  TSendCmdInParams = packed record
    cBufferSize : DWORD; // Buffer size in bytes
    irDriveRegs : TIDERegs; // Structure with drive register values.
    bDriveNumber : Byte; // Physical drive number to send command to (0,1,2,3).
    bReserved : Array[0..2] of Byte; // Reserved for future expansion.
    dwReserved : Array[0..3] of DWORD; // For future use.
    bBuffer : Array[0..0] of Byte; // Input buffer.
  end;
  SENDCMDINPARAMS = TSendCmdInParams;
  PSendCmdInParams = ^TSendCmdInParams;

  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 : ULONG;
    wMultSectorStuff : Word;
    ulTotalAddressableSectors : ULONG;
    wSingleWordDMA : Word;
    wMultiWordDMA : Word;
    bReserved : Array[0..127] of Byte;
  end;
  PIdSector = ^TIdSector;

const
  IDE_ID_FUNCTION = $EC;
  IDENTIFY_BUFFER_SIZE = 512;
  DFP_RECEIVE_DRIVE_DATA = $0007c088;
  IOCTL_SCSI_MINIPORT = $0004d008;
  IOCTL_SCSI_MINIPORT_IDENTIFY = $001b0501;
  DataSize = sizeof(TSendCmdInParams)-1+IDENTIFY_BUFFER_SIZE;
  BufferSize = SizeOf(SRB_IO_CONTROL)+DataSize;
  W9xBufferSize = IDENTIFY_BUFFER_SIZE+16;
var
  hDevice : THandle;
  cbBytesReturned : DWORD;
  pInData : PSendCmdInParams;
  pOutData : Pointer; // PSendCmdInParams;
  Buffer : Array[0..BufferSize-1] of Byte;
  srbControl : TSrbIoControl absolute Buffer;

  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 := '';
  FillChar(Buffer,BufferSize,#0);
  if Win32Platform=VER_PLATFORM_WIN32_NT then
    begin // Windows NT, Windows 2000
      // Get SCSI port handle
      hDevice := CreateFile( '\\.\Scsi0:', GENERIC_READ or GENERIC_WRITE,
        FILE_SHARE_READ or FILE_SHARE_WRITE, nil, OPEN_EXISTING, 0, 0 );
      if hDevice=INVALID_HANDLE_VALUE then Exit;
      try
        srbControl.HeaderLength := SizeOf(SRB_IO_CONTROL);
        System.Move('SCSIDISK',srbControl.Signature,8);
        srbControl.Timeout := 2;
        srbControl.Length := DataSize;
        srbControl.ControlCode := IOCTL_SCSI_MINIPORT_IDENTIFY;
        pInData := PSendCmdInParams(PChar(@Buffer)+SizeOf(SRB_IO_CONTROL));
        pOutData := pInData;
        with pInData^ do
        begin
          cBufferSize := IDENTIFY_BUFFER_SIZE;
          bDriveNumber := 0;
          with irDriveRegs do
          begin
            bFeaturesReg := 0;
            bSectorCountReg := 1;
            bSectorNumberReg := 1;
            bCylLowReg := 0;
            bCylHighReg := 0;
            bDriveHeadReg := $A0;
            bCommandReg := IDE_ID_FUNCTION;
          end;
        end;
        if not DeviceIoControl( hDevice, IOCTL_SCSI_MINIPORT, @Buffer,
          BufferSize, @Buffer, BufferSize, cbBytesReturned, nil ) then Exit;
      finally
        CloseHandle(hDevice);
      end;
    end
  else
    begin // Windows 95 OSR2, Windows 98
      hDevice := CreateFile( '\\.\SMARTVSD', 0, 0, nil, CREATE_NEW, 0, 0 );
      if hDevice=INVALID_HANDLE_VALUE then Exit;
      try
        pInData := PSendCmdInParams(@Buffer);
        pOutData := PChar(@pInData^.bBuffer);
        with pInData^ do
        begin
          cBufferSize := IDENTIFY_BUFFER_SIZE;
          bDriveNumber := 0;
          with irDriveRegs do
          begin
            bFeaturesReg := 0;
            bSectorCountReg := 1;
            bSectorNumberReg := 1;
            bCylLowReg := 0;
            bCylHighReg := 0;
            bDriveHeadReg := $A0;
            bCommandReg := IDE_ID_FUNCTION;
          end;
        end;
        if not DeviceIoControl( hDevice, DFP_RECEIVE_DRIVE_DATA, pInData,  
           SizeOf(TSendCmdInParams)-1, pOutData, W9xBufferSize,
           cbBytesReturned, nil ) then Exit;
      finally
        CloseHandle(hDevice);
      end;
    end;
    with PIdSector(PChar(pOutData)+16)^ do
    begin
      ChangeByteOrder(sSerialNumber,SizeOf(sSerialNumber));
      SetString(Result,sSerialNumber,SizeOf(sSerialNumber));
    end;
end;

Пример использования:

var s : String;
    rc : DWORD;
begin
  s := GetIdeDiskSerialNumber;
  if s='' then
    begin
      rc := GetLastError;
      if rc=0 then WriteLn('IDE drive is not support SMART feature')
      else WriteLn(SysErrorMessage(rc));
    end
  else WriteLn('Disk serial number: ''', s,'''');
end.  

Автор: Alex Konshin, [email]akonshin@earthlink.net[/email], Boston, USA