1   
2   uses 
3     Winsock; 
4   
5   {...} 
6   
7   function getIPs: Tstrings; 
8   type 
9     TaPInAddr = array[0..10] of PInAddr; 
10    PaPInAddr = ^TaPInAddr; 
11  var 
12    phe: PHostEnt; 
13    pptr: PaPInAddr; 
14    Buffer: array[0..63] of Char; 
15    I: Integer; 
16    GInitData: TWSAData; 
17  begin 
18    WSAStartup($101, GInitData); 
19    Result := TstringList.Create; 
20    Result.Clear; 
21    GetHostName(Buffer, SizeOf(Buffer)); 
22    phe := GetHostByName(buffer); 
23    if phe = nil then Exit; 
24    pPtr := PaPInAddr(phe^.h_addr_list); 
25    I    := 0; 
26    while pPtr^[I] <> nil do 
27    begin 
28      Result.Add(inet_ntoa(pptr^[I]^)); 
29      Inc(I); 
30    end; 
31    WSACleanup; 
32  end; 
33  
34  {Example of use:}
35  
36  procedure TForm1.Button1Click(Sender: TObject); 
37  begin 
38    ShowMessage('Your IP Address is: ' + GetIps; 
39  end;