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if TcpClient.Connected then
if TcpClient.Socket.Readable(0) then
begin
try
ReadID:=TcpClient.ReadInteger;
Read_Timer.Enabled:=False;
if ReadID=1 then
        begin
        M_Chat.Lines.Add('Der Server hat das Programm verlassen');
        TcpClient.Disconnect;
        end;
ReadID:=0;
finally
Read_Timer.Enabled:=True;
end;
end;                    

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procedure THost.TCPServerConnect(AThread: TIdPeerThread);
var
  NewClient: PClient;

begin
  GetMem(NewClient, SizeOf(TClient));

  NewClient.DNS         := AThread.Connection.LocalName;
  NewClient.Connected   := Now;
  NewClient.LastAction  := NewClient.Connected;
  NewClient.Thread      :=AThread;

  AThread.Data:=TObject(NewClient);

  try
    Clients.LockList.Add(NewClient);
  finally
    Clients.UnlockList;
  end;
end;