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AnnotationCreated Event
See Also 
Leadtools.MedicalViewer Namespace > MedicalViewerBaseCell Class : AnnotationCreated Event



The AnnotationCreated Event is available as an add-on to the LEADTOOLS Medical Imaging toolkits.

Optional delegate method for additional processing.

Syntax

Visual Basic (Declaration) 
Public Event AnnotationCreated As EventHandler(Of MedicalViewerAnnotationCreatedEventArgs)
Visual Basic (Usage)Copy Code
Dim instance As MedicalViewerBaseCell
Dim handler As EventHandler(Of MedicalViewerAnnotationCreatedEventArgs)
 
AddHandler instance.AnnotationCreated, handler
C++/CLI 
public:
event EventHandler<MedicalViewerAnnotationCreatedEventArgs^>^ AnnotationCreated

Event Data

The event handler receives an argument of type MedicalViewerAnnotationCreatedEventArgs containing data related to this event. The following MedicalViewerAnnotationCreatedEventArgs properties provide information specific to this event.

PropertyDescription
AnnotationType (Read only) Gets an enumerated value that indicates which type of annotation was created.
CellIndex (Read only) Gets the value that indicates the index of the cell that has the annotation that was created. This value is only valid if the cell is add to the MedicalViewer.
SubCellIndex (Read only) Gets the value that indicates the index of the sub-cell that has the annotation that was created.

Example

Visual BasicCopy Code
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
C#Copy Code
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";
}

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also

Leadtools.MedicalViewer requires a Medical Imaging license and unlock key. For more information, refer to: Imaging Pro/Document/Medical Features