الحصول على اسم الكمبيوتر عبر ip - نسخة قابلة للطباعة

كود :

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls,[color=Red]WinSock[/color];
type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
    function  IPAddrToName(IPAddr: string): string;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

function tform1.IPAddrToName(IPAddr: string): string;
var 
  SockAddrIn: TSockAddrIn;
  HostEnt: PHostEnt; 
  WSAData: TWSAData; 
begin
  WSAStartup($101, WSAData);
  SockAddrIn.sin_addr.s_addr := inet_addr(PChar(IPAddr)); 
  HostEnt := gethostbyaddr(@SockAddrIn.sin_addr.S_addr, 4, AF_INET); 
  if HostEnt <> nil then 
    Result := StrPas(Hostent^.h_name) 
  else 
    Result := ''; 
end; 

procedure TForm1.Button1Click(Sender: TObject);
begin
ShowMessage(IPAddrToName(Edit1.Text));

end;
end.

كود :

http://www.delphitricks.com/source-code/internet/get_computer_name_from_ip_address.html