取硬盘物理序列号在Delphi2011乱码

/////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// 以下代码在D7中可以正常获取硬盘序列号，但是在D2011中却是乱码，可能是字符处理和D7不同，哪位朋友改改吧。
//
/////////////////////////////////////////////////////////////////////////////////////////////////////////

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
  Edit1: TEdit;
  Button1: TButton;
  procedure Button1Click(Sender: TObject);
  procedure Button2Click(Sender: TObject);
  private
  { Private declarations }
  public
  { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
end;

//获得硬盘序列号
function GetIdeSerialNumber: pchar;
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 begin // Windows NT, Windows 2000
// 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;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Edit1.Text := strpas(GetIdeSerialNumber);
end;

end.

Delphi(Pascal) code

// 获得硬盘序列号
function GetIdeSerialNumber: PAnsiChar;
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: PAnsiChar;
    i: Integer;
    c: AnsiChar;
  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
  begin // Windows NT, Windows 2000
    // 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));
    (PAnsiChar(@sSerialNumber) + SizeOf(sSerialNumber))^ := #0;
    Result := PAnsiChar(@sSerialNumber);
  end;
end;

也就是 PChar 改 PAnsiChar， Char 改 AnsiChar

D2011中，缺省char=WideChar，string=WideString，注意一下就OK了