private void RangeSlider_UpperValueChanged(object sender, RangeParameterChangedEventArgs e) { try { GrayMaxValue.Text = RangeSli.UpperValue.ToString(); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } try { HD.AutoModerateGray(HalconPic, ProcessingPic.HalconWindow, (uint)RangeSli.LowerValue, (uint)RangeSli.UpperValue); } catch (Exception ex) { MessageBox.Show(ex.ToString()); } }