unit1.pas

Delphi 网络通信协议代码,是多种网络协议的实现代码

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,registry,
  StdCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Edit1: TEdit;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
var
    reg:TRegistry;
    DNS:string;
    re:boolean;
begin
  reg:=TRegistry.Create();
  try
    Reg.RootKey :=  HKEY_LOCAL_MACHINE;
    reg.OpenKey('SYSTEM\CurrentControlSet\Services\VxD\MSTCP'
                ,false);
    if re then
       DNS:=reg.ReadString('NameServer')
    else
        DNS:='Failed';
  finally
    Reg.CloseKey;
    Reg.Free;
  end;
  edit1.text:=DNS;
end;

end.