private void SetConnnectionStatus(bool connected) { BtnConnect.Enabled = !connected; BtnDisconnect.Enabled = connected; GrpMovement.Enabled = connected; GrpBurningTime.Enabled = connected; GrpEngravingControls.Enabled = connected; GrpPicture.Enabled = connected; if (connected) { NumBurningTime.Minimum = _engraver.GetMinimumBurningTime(); NumBurningTime.Maximum = _engraver.GetMaximumBurningTime(); NumBurningTime.Value = NumBurningTime.Minimum; } }