/// <summary>
 /// 键盘按下触发事件
 /// </summary>
 private void ViewPort_KeyDown(object sender, System.Windows.Input.KeyEventArgs e)
 {
     if (e.Key == Key.Delete)
     {
         RoiController.RemoveActive();
         //将事件传递的方法
         HWndActiveRoiChanged?.Invoke(this, new EventArgs());
     }
 }
        private void ViewPort_HMouseUp(object sender, HMouseEventArgsWPF e)
        {
            mousePressed = false;

            if (RoiController != null &&
                (RoiController.ActiveROIidx != -1) &&
                (dispROI == MODE_INCLUDE_ROI))
            {
                //计算ROI合并区域,并判断是否刷新显示
                OperationGatherRegion();

                //将事件传递的方法
                HWndActiveRoiChanged?.Invoke(this, new EventArgs());
            }
            else if (stateView == MODE_VIEW_ZOOMWINDOW)
            {
                ZoomWindow.Dispose();
            }
        }