CellMouseUp Event

public event EventHandler<MedicalViewerCellMouseEventArgs> CellMouseUp

class MedicalViewerForm : Form
   {
      private MedicalViewer _medicalViewer;
      void MedicalViewerForm_SizeChanged(object sender, EventArgs e)
      {
         _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);
      }

      public MedicalViewerForm()
      {
         RasterCodecs _codecs = new RasterCodecs();
         RasterImage _image;

         this.SizeChanged += new EventHandler(MedicalViewerForm_SizeChanged);

         // Create the medical viewer and adjust the size and the location.
         _medicalViewer = new MedicalViewer(1, 2);
         _medicalViewer.Location = new Point(0, 0);
         _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);

         // Load an image and then add it to the control.
         _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir,"xa.dcm"));
         MedicalViewerMultiCell cell = new MedicalViewerMultiCell(_image, true, 1, 1);
         _medicalViewer.Cells.Add(cell);

         // add some actions that will be used to change the properties of the images inside the control.
         cell.AddAction(MedicalViewerActionType.WindowLevel);
         cell.AddAction(MedicalViewerActionType.Alpha);
         cell.AddAction(MedicalViewerActionType.Offset);

         // assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated.
         cell.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active);
         cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active);
         cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active);


         // adjust some properties of the cell and add some tags.
         _medicalViewer.Cells[0].SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448");
         _medicalViewer.Cells[0].SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame);
         _medicalViewer.Cells[0].SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale);
         _medicalViewer.Cells[0].SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData);
         _medicalViewer.Cells[0].SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView);


         // Load another image and then add it to the control.
         _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir,"mr.dcm"));
         _medicalViewer.Cells.Add(new MedicalViewerMultiCell(_image, true, 2, 2));

         // add some actions that will be used to change the properties of the images inside the control.
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.WindowLevel);
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.Alpha);
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.Offset);
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.RectangleRegion);

         // assign the added actions to a mouse button, meaning that when the user clicks and drags the mouse button, the associated action will be activated.
         _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.RectangleRegion, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active);
         _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active);
         _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active);

         // adjust some properties of the cell and add some tags.
         _medicalViewer.Cells[1].SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448");
         _medicalViewer.Cells[1].SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame);
         _medicalViewer.Cells[1].SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale);
         _medicalViewer.Cells[1].SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData);
         _medicalViewer.Cells[1].SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView);


         _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.LeftCenter, MedicalViewerTagType.UserData, "Left");
         _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.TopCenter, MedicalViewerTagType.UserData, "Top");
         _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.RightCenter, MedicalViewerTagType.UserData, "Right");
         _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.BottomCenter, MedicalViewerTagType.UserData, "Bottom");

         Controls.Add(_medicalViewer);
         _medicalViewer.Dock = DockStyle.Fill;
      }
      public MedicalViewer Viewer
      {
         get { return _medicalViewer; }
      }
   }

   MedicalViewerForm GetMedicalControl()
   {
      return new MedicalViewerForm();
   }

   // This example will flip the image along with the annotation container if the user click on the image using the left mouse button, and will reservse on the right mouse button, and will rotate on the middle mouse button.

   public void MedicalViewerCellMouseExample()
   {
      MedicalViewerForm myForm = GetMedicalControl();
      MedicalViewer medicalViewer = myForm.Viewer;
      MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(medicalViewer.Cells[0]);

      cell.CellMouseUp +=new EventHandler<MedicalViewerCellMouseEventArgs>(medicalViewer_CellMouseUp);

      myForm.ShowDialog();
   }

   void medicalViewer_CellMouseUp(object sender, MedicalViewerCellMouseEventArgs e)
   {
      MedicalViewerMultiCell cell = (MedicalViewerMultiCell)sender;
      FlipCommand flipCommand;
      switch (e.Button)
      {
         case MouseButtons.Left:
            flipCommand = new FlipCommand();
            cell.Image.Page = e.SubCellIndex + 1;
            flipCommand.Run(cell.Image);
            cell.FlipAnnotationContainer(e.SubCellIndex);
            cell.Invalidate();
            cell.FlipLabels();
            break;
         case MouseButtons.Middle:
            RotateCommand rotateCommand = new RotateCommand(9000, RotateCommandFlags.Bicubic, new RasterColor(0, 0, 0));
            cell.Image.Page = e.SubCellIndex + 1;
            rotateCommand.Run(cell.Image);
            int angle = cell.GetRotateImagePerspectiveAngle(0);
            cell.RotateAnnotationContainer(90, e.SubCellIndex);
            cell.RotateLabels(90);
            cell.Invalidate();
            break;
         case MouseButtons.Right:
            flipCommand = new FlipCommand(true);
            cell.Image.Page = e.SubCellIndex + 1;
            flipCommand.Run(cell.Image);
            cell.ReverseAnnotationContainer(e.SubCellIndex);
            cell.Invalidate();
            cell.ReverseLabels();
            break;
      }
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}