saw

var
  Form1: TForm1;
  clt: TClientSocket;
  fs:tmemorystream;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
clt:=tclientsocket.Create(self);
clt.OnConnect:=conn;
clt.OnDisconnect:=dconn;
end;

procedure TForm1.BitBtn1Click(Sender: TObject);
begin
clt.Address:='127.0.0.1';
clt.Port:=33666;
clt.active:=true;
end;

procedure TForm1.conn(Sender: TObject; Socket: TCustomWinSocket);
begin
windows.beep(999,99);
end;

procedure TForm1.dconn(Sender: TObject; Socket: TCustomWinSocket);
begin
windows.beep(200, 99);
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
clt.Socket.SendText(edit1.text);
end;

procedure TForm1.SpeedButton1Click(Sender: TObject);
begin
speedbutton3.Click;
if not clt.socket.SendStream(fs) then
showmessage('not sent!');
end;

procedure TForm1.SpeedButton3Click(Sender: TObject);
var bmp:tbitmap;
    jpg:tjpegimage;
    can:tcanvas;
begin
can:=tcanvas.create;
can.Handle:=getdc(0);
bmp:=tbitmap.create;
bmp.width:=screen.Width;
bmp.Height:=screen.Height;
bmp.canvas.CopyRect(rect(0,0,1024,768), can, rect(0,0, 1024, 768));
jpg:=tjpegimage.Create;
jpg.Assign(bmp);
jpg.CompressionQuality:=50;
fs:=tmemorystream.Create;
jpg.Compress;
jpg.SaveToStream(fs);
label1.caption:=inttostr(fs.Size);
end;

end.