Real IP address...

Hi experts,

I am trying to get the real Internet IP address thru Delphi. I am behind a router (or proxy) so my code gives me only the local Internet-IP-Address of my machine. I am using this code, from about.com (see below), but it doesn't give me the real IP address. Any ideas?

uses Winsock;

function GetIPFromHost
(var HostName, IPaddr, WSAErr: string): Boolean;
type
  Name = array[0..100] of Char;
  PName = ^Name;
var
  HEnt: pHostEnt;
  HName: PName;
  WSAData: TWSAData;
  i: Integer;
begin
  Result := False;    
  if WSAStartup($0101, WSAData) <> 0 then begin
    WSAErr := 'Winsock is not responding."';
    Exit;
  end;
  IPaddr := '';
  New(HName);
  if GetHostName(HName^, SizeOf(Name)) = 0 then
  begin
    HostName := StrPas(HName^);
    HEnt := GetHostByName(HName^);
    for i := 0 to HEnt^.h_length - 1 do
     IPaddr :=
      Concat(IPaddr,
      IntToStr(Ord(HEnt^.h_addr_list^[i])) + '.');
    SetLength(IPaddr, Length(IPaddr) - 1);
    Result := True;
  end
  else begin
   case WSAGetLastError of
    WSANOTINITIALISED:WSAErr:='WSANotInitialised';
    WSAENETDOWN      :WSAErr:='WSAENetDown';
    WSAEINPROGRESS   :WSAErr:='WSAEInProgress';
   end;
  end;
  Dispose(HName);
  WSACleanup;
end;



procedure TForm1.Button1Click(Sender: TObject);
var
  Host, IP, Err: string;
begin
  if GetIPFromHost(Host, IP, Err) then begin
    Edit1.Text := Host;
    Edit2.Text := IP;
  end
  else
    MessageDlg(Err, mtError, [mbOk], 0);
end;