Hard diskin seri numarasını bulur.
procedure TForm1.Button1Click(Sender: TObject);
var
VolumeSerialNumber : DWORD;
MaximumComponentLength : DWORD;
FileSystemFlags : DWORD;
SerialNumber : string;
begin
GetVolumeInformation('C:\', nil, 0, @VolumeSerialNumber,
MaximumComponentLength, FileSystemFlags, nil, 0);
SerialNumber := IntToHex(HiWord(VolumeSerialNumber), 4) + '-' + IntToHex(LoWord(VolumeSerialNumber), 4);
Memo1.Lines.Add(SerialNumber);
end;