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uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,ScktComp;

type
  TForm1 = class(TForm)
  procedure DynConnectEvent(Sender: TObject; Socket: TCustomWinSocket);
    procedure FormCreate(Sender: TObject);
      private
    { Private-Deklarationen }
  public
  ClientSocket1: TClientSocket;
    { Public-Deklarationen }
  end;                    

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unit Main;


interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, IdBaseComponent, IdComponent, IdTCPServer, StdCtrls;

type
  TForm1 = class(TForm)
    IdTCPServer1: TIdTCPServer;
    Button1: TButton;
    Button2: TButton;
    Memo1: TMemo;
    procedure IdTCPServer1Execute(AThread: TIdPeerThread);
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
    FSend: Boolean;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.IdTCPServer1Execute(AThread: TIdPeerThread);
begin

  if FSend then begin
    AThread.Connection.WriteLn(memo1.text);
    FSend:=false;
  end;
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  FSend := False;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  FSend := True;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  IdTCPServer1.Active := True;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  IdTCPServer1.Active := False;
end;

end.                    

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unit Unit13;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, IdBaseComponent, IdComponent, IdTCPConnection, IdTCPClient,
  StdCtrls, IdAntiFreezeBase, IdAntiFreeze;

type
  TForm13 = class(TForm)
    Memo1: TMemo;
    Client: TIdTCPClient;
    IdAntiFreeze1: TIdAntiFreeze;
    procedure FormActivate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form13: TForm13;

implementation

uses Unit1;

{$R *.dfm}

procedure TForm13.FormActivate(Sender: TObject);

begin
memo1.text:=' ';
if not fileexists('C:\hausaufgaben'+form1.label1.Caption) then begin
  with Client do begin
    Connect;
    if Connected then begin
      Memo1.Lines.Add(ReadLn('', 3000));
      memo1.lines.SaveToFile('C:\hausaufgaben'+form1.label1.caption);

    end;
  end;
end else memo1.lines.loadfromfile('C:\hausaufgaben'+form1.label1.caption);
end ;


procedure TForm13.FormClose(Sender: TObject; var Action: TCloseAction);
begin
client.Disconnect;
end;

end.