procedure TForm1.Timer1Timer(Sender: TObject);
{©Drkb v.3(2007): www.drkb.ru}
var
 pgui: TGUIThreadinfo;
begin
 pgui.cbSize := SizeOf(TGUIThreadinfo);
 GetGUIThreadInfo(GetWindowThreadProcessId(GetForegroundWindow), pgui);
 SendMessage(pgui.hwndFocus, WM_SETTEXT, Length(Edit1.Text), Integer(@Edit1.Text[1]));
end;