哪位大侠能帮忙一下将这段 VC 代码翻译成 Delphi 代码, 不胜感谢!

Question

这是一段获取硬盘物理序列号的代码, 非常有用。可惜是 VC 写的，小弟不懂 VC ，哪位帮忙改写成 Delphi 代码，双手奉上 100 分。如果翻译之后请发送到 [email protected] , 非常感谢！因为代码太长，无法贴出，请从以下地址下载：ftp://60.191.135.11/soft/wdsoft/lyf/diskid32.cpp

Answer 1

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

Answer 2

谢谢 xixuemao！
你的这个代码我早就用过，经测试在 Win98 下面不行。下面这行的判断代码通不过。
if not DeviceIoControl(hDevice, $0007C088, @SCIP, SizeOf(TSendCmdInParams) - 1,
                            @aIdOutCmd, SizeOf(aIdOutCmd), cbBytesReturned, nil) then 

Answer 3

var
 i:integer;
 lpVolumeNameBuffer:string;
 nVolumeNameSize:dword;
 lpVolumeSerialNumber:lpdword;
 lpMaximumComponentLength:dword;
 lpFileSystemFlags:dword;
 lpFileSystemNameBuffer:string;
 nFileSystemNameSize :dword;begin  setlength(lpvolumenamebuffer,100);
  new(lpvolumeserialnumber);
  setlength(lpfilesystemnamebuffer,20);
  nvolumenamesize:=100;
  nFileSystemNameSize:=20;
  if not GetVolumeInformation( pchar(leftstr(systemdir,3)), //系统目录所在的磁盘根路径 ,如c:\
                        pchar(lpVolumeNameBuffer),nVolumeNameSize, //卷名
                        lpVolumeSerialNumber, //磁盘卷序列号
                        lpMaximumComponentLength, //文件名长度
                        lpFileSystemFlags, //二进制位标志的变量
                        pchar(lpFileSystemNameBuffer),nFileSystemNameSize) then
  BEGIN
    Application.MessageBox(PCHAR('请检查系统配置！'),PCHAR('错误'),MB_OK+MB_ICONERROR);
    application.terminate;
  END;
  snstr:=trim(inttostr(lpvolumeserialnumber^)); //序列号

Answer 4

DeviceIoControl 判断这一行没有错误提示，就直接返回了 False 而退出。这个API 函数的详细用法参考资料找不到，不会改。这段代码只在 NT 环境下有效，在 Win98 下不能用。我找到的这段 VC 代码在 Win98 下面是可以用的，可惜就是不会 VC，无从下手。

Answer 5

MSDN中有DeviceIoControl的详细说明

Answer 6

看了一眼是够多的，眼花。你可以去VC版块让人把这个给你做成一个dll，然后你直接调用就可以了。