急急 如何获得本地机器的硬盘号，主板号？ (100分)

有如下代码只在WINDOWS2000上获得本地IDE接口的硬盘序列号：
unit Unit3;

interface
uses Windows, SysUtils;
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;
function GetIdeDiskSerialNumber : String;
//function GetIdeDiskSerialNumber : String;
stdcall;
implementation
procedure ChangeByteOrder( var Data;
Size : Integer );
var ptr : PChar;
i : Integer;
c : Char;
begin
ptr := @Data;
for i := 0 to (Size shr 1)-1do
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
//对操作系统的版本进行识别，若是NT 则执行；若不是则转到后面去执行。
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 irDriveRegsdo
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 irDriveRegsdo
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;
// WinNT/Win2000 - 你必须拥有对硬盘的读/写访问权限
// Win98
// SMARTVSD.VXD 必须安装到 /windows/system/iosubsys
// (不要忘记在复制后重新启动系统)
end;

end.

发现在有的机器上可以行，有的机器上返回的序列号为空（这些都是在Windows 200上执行的）？
希望高手指教！100分送上，不够再加，直到送完为止。
还想为所有硬盘序列号的长度都是相同的吗？

给楼主两个我从 DFW 上弄过来的函数：
//得到硬盘序列号
function GetHDNumber(Drv : String): DWORD;
var
VolumeSerialNumber : DWORD;
MaximumComponentLength : DWORD;
FileSystemFlags : DWORD;
begin
if Drv[Length(Drv)] =':' then
Drv := Drv + '/';
GetVolumeInformation(pChar(Drv),
nil,
0,
@VolumeSerialNumber,
MaximumComponentLength,
FileSystemFlags,
nil,
0);
Result:= (VolumeSerialNumber);
end;

//这个号码是用户给你生成注册码的，它通过对硬盘序列号编码而来。
function Serial(NumWORD):string;
var
sNum:string;
inChar:array[1..4]of char;
begin
Num:=Num xor 800921101164;
sNum:=inttostr(Num);
inChar[1]:=char(((integer(sNum[1])+integer(sNum[2]))mod 5)+integer('a'));
inChar[2]:=char(((integer(sNum[3])+integer(sNum[4]))mod 5)+integer('a'));
inChar[3]:=char(((integer(sNum[5])+integer(sNum[6]))mod 5)+integer('a'));
inChar[4]:=char(((integer(sNum[7])+integer(sNum[8])+integer(sNum[9]))mod 5)+integer('a'));
insert(inChar[1],sNum,1);
insert(inChar[4],sNum,3);
insert(inChar[2],sNum,5);
insert(inChar[3],sNum,9);
Result:=sNum;
end;

function ShortSerial(Serial:string):string;
var
s,s2,t:string;
a,b:string;
i:integer;
begin
s:=Serial;
if s='' then
s:='5E611A';
while length(s)<8do
begin
s:=s+s;
end;

a:=copy(s,1,8);
b:=copy(s,length(s)-7,8);
s2:='';
for i:=1 to 4do
begin
t:=Format('%d',[abs(StrtoInt('$'+copy(a,2*i-1,2))-StrtoInt('$'+copy(b,2*i-1,2)))]);
s2:=s2+inttohex(strtoint(t),2);
end;
result:=s2;
end;
-----------------------
我自己进行软件注册时都是使用这两个函数的

to: searoom
请问你的着两个函数可以跨平台吗？

肯定不可以了，
你看看这句话：
if Win32Platform=VER_PLATFORM_WIN32_NT then
//对操作系统的版本进行识别，若是NT 则执行；若不是则转到后面去执行。
表示只能在WINDOWS环境中执行。
还有啊，它调用的是WINDDOWS API 函数，在Linux下当然不能用啦！
哈哈，我这样回答一定让你很失望吧，
I’m Sorry ! 我也不想的。