unit2.pas

硬盘序列号GetIdeDiskSerialNumber

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

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.  Must be zero. 
  end;
  IDEREGS   = TIDERegs;
  PIDERegs  = ^TIDERegs;

  TSendCmdInParams = packed record 
    cBufferSize  : DWORD; 
    irDriveRegs  : TIDERegs; 
    bDriveNumber : Byte; 
    bReserved    : Array[0..2] of Byte; 
    dwReserved   : Array[0..3] of DWORD;
    bBuffer      : Array[0..0] of Byte;
  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;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

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;

function GetIdeDiskSerialNumber : String;

var 
  hDevice : THandle; 
  cbBytesReturned : DWORD; 
  pInData : PSendCmdInParams; 
  pOutData : Pointer; // PSendCmdOutParams 
  Buffer : Array[0..BufferSize-1] of Byte;
  srbControl : TSrbIoControl absolute Buffer;
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 := @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;

procedure TForm1.Button1Click(Sender: TObject);
begin
  EDIT1.TEXT:=TRIM(GetIdeDiskSerialNumber);
end;

end.