Public Class MedicalViewerAnnotationCreatedEventArgs 
   Inherits System.EventArgs

Dim instance As MedicalViewerAnnotationCreatedEventArgs

public class MedicalViewerAnnotationCreatedEventArgs : System.EventArgs 

public ref class MedicalViewerAnnotationCreatedEventArgs : public System.EventArgs 

Private Class MedicalViewerForm : Inherits Form
      Private _medicalViewer As MedicalViewer
      Public Sub New()
         Dim _codecs As RasterCodecs = New RasterCodecs()
         Dim _image As RasterImage

         AddHandler SizeChanged, AddressOf 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(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)

         ' Load an image and then add it to the control.
         _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "xa.dcm"))
         Dim cell As MedicalViewerMultiCell = New MedicalViewerMultiCell(_image, True, 1, 1)

         ' add some action that will be used to change the properties of the images inside the control.
         cell.AddAction(MedicalViewerActionType.AnnotationRectangle)
         cell.AddAction(MedicalViewerActionType.AnnotationEllipse)
         cell.AddAction(MedicalViewerActionType.AnnotationHilite)

         ' assign the added actions to a mouse button, meaning that when the user click and drag the mouse button, the associated action will be activated.
         cell.SetAction(MedicalViewerActionType.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
         cell.SetAction(MedicalViewerActionType.AnnotationEllipse, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
         cell.SetAction(MedicalViewerActionType.AnnotationHilite, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)

         _medicalViewer.Cells.Add(cell)

         ' adjust some properties to 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 action that will be used to change the properties of the images inside the control.
         _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.AnnotationRectangle)
         _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.AnnotationEllipse)
         _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.AnnotationHilite)

         ' assign the added actions to a mouse button, meaning that when the user click and drag the mouse button, the associated action will be activated.
         _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
         _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.AnnotationEllipse, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
         _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.AnnotationHilite, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)

         ' adjust some properties to 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)


         Controls.Add(_medicalViewer)
         _medicalViewer.Dock = DockStyle.Fill
      End Sub

      Private Sub MedicalViewerForm_SizeChanged(ByVal sender As Object, ByVal e As EventArgs)
         _medicalViewer.Size = New Size(Me.ClientRectangle.Right, Me.ClientRectangle.Bottom)
      End Sub
      Public ReadOnly Property Viewer() As MedicalViewer
         Get
            Return _medicalViewer
         End Get
      End Property
   End Class

   Private Function GetMedicalControl() As MedicalViewerForm
      Return New MedicalViewerForm()
   End Function

   'This example converts the annotation object (rectangle, ellipse and hilite) into a region once the user draws them

   Public Sub MedicalViewerAnnotationCreatedExample()
      Dim myForm As MedicalViewerForm = GetMedicalControl()
      Dim medicalViewer As MedicalViewer = myForm.Viewer
      Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell)

      AddHandler cell.AnnotationCreated, AddressOf medicalViewer_AnnotationCreated
      myForm.ShowDialog()
   End Sub

   Private Sub medicalViewer_AnnotationCreated(ByVal sender As Object, ByVal e As MedicalViewerAnnotationCreatedEventArgs)
      Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)
      Dim attribute As MedicalViewerAnnotationAttributes = cell.GetSelectedAnnotationAttributes(e.SubCellIndex)
      Select Case attribute.Type
         Case MedicalViewerActionType.AnnotationRectangle, MedicalViewerActionType.AnnotationEllipse, MedicalViewerActionType.AnnotationHilite
            cell.ConvertAnnotationToRegion(RasterRegionCombineMode.Or, True)
      End Select
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

class MedicalViewerForm : Form
   {
      private MedicalViewer _medicalViewer;
      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);

         // add some action that will be used to change the properties of the images inside the control.
         cell.AddAction(MedicalViewerActionType.AnnotationRectangle);
         cell.AddAction(MedicalViewerActionType.AnnotationEllipse);
         cell.AddAction(MedicalViewerActionType.AnnotationHilite);

         // assign the added actions to a mouse button, meaning that when the user click and drag the mouse button, the associated action will be activated.
         cell.SetAction(MedicalViewerActionType.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime);
         cell.SetAction(MedicalViewerActionType.AnnotationEllipse, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime);
         cell.SetAction(MedicalViewerActionType.AnnotationHilite, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime);

         _medicalViewer.Cells.Add(cell);

         // adjust some properties to 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 action that will be used to change the properties of the images inside the control.
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.AnnotationRectangle);
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.AnnotationEllipse);
         _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.AnnotationHilite);

         // assign the added actions to a mouse button, meaning that when the user click and drag the mouse button, the associated action will be activated.
         _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime);
         _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.AnnotationEllipse, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime);
         _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.AnnotationHilite, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime);

         // adjust some properties to 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);


         Controls.Add(_medicalViewer);
         _medicalViewer.Dock = DockStyle.Fill;
      }

      void MedicalViewerForm_SizeChanged(object sender, EventArgs e)
      {
         _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom);
      }
      public MedicalViewer Viewer
      {
         get { return _medicalViewer; }
      }
   }

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

   //This example converts the annotation object (rectangle, ellipse and hilite) into a region once the user draws them

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

      cell.AnnotationCreated += new EventHandler<MedicalViewerAnnotationCreatedEventArgs>(medicalViewer_AnnotationCreated);
      myForm.ShowDialog();
   }

   void medicalViewer_AnnotationCreated(object sender, MedicalViewerAnnotationCreatedEventArgs e)
   {
      MedicalViewerMultiCell cell = (MedicalViewerMultiCell)sender;
      MedicalViewerAnnotationAttributes attribute = cell.GetSelectedAnnotationAttributes(e.SubCellIndex);
      switch (attribute.Type)
      {
         case MedicalViewerActionType.AnnotationRectangle:
         case MedicalViewerActionType.AnnotationEllipse:
         case MedicalViewerActionType.AnnotationHilite:
            cell.ConvertAnnotationToRegion(RasterRegionCombineMode.Or, true);
            break;
      }
   }

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