private void bT_OpenCamera2_Click(object sender, EventArgs e) { if (!Camera2.IsOpen) { bool IsOpen = Camera2.OpenCamera(); if (IsOpen) { Cam2_ExpTime = Camera2.ReadExposureTime(); trackBar2.Value = (int)Cam2_ExpTime; labelExposure2.Text = String.Format("{0:N3} ms", Cam2_ExpTime / 1000); // Camera2.Set_TriggerSource(1); } } else { Camera2.CloseCamera(); } updateControls2(); }