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ActiveSubCellChanged Event
See Also  Example
Leadtools.MedicalViewer Namespace > MedicalViewer Class : ActiveSubCellChanged Event



Optional delegate method for additional processing.

Syntax

Visual Basic (Declaration) 
Public Event ActiveSubCellChanged() As EventHandler(Of MedicalViewerActiveSubCellChangedEventArgs)
Visual Basic (Usage)Copy Code
Dim instance As MedicalViewer
Dim handler As EventHandler(Of MedicalViewerActiveSubCellChangedEventArgs)
 
AddHandler instance.ActiveSubCellChanged, handler
C# 
public event EventHandler<MedicalViewerActiveSubCellChangedEventArgs> ActiveSubCellChanged()
C++/CLI 
public:
event EventHandler<MedicalViewerActiveSubCellChangedEventArgs>^ ActiveSubCellChanged();

Example

Visual BasicCopy Code
Private Class MedicalViewerForm : Inherits Form
   Private _medicalViewer As MedicalViewer
   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 Sub New()
      RasterCodecs.Startup()
      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)

      ' add some action that will be used to change the properties of the images inside the control.
      _medicalViewer.AddAction(MedicalViewerActionType.WindowLevel)
      _medicalViewer.AddAction(MedicalViewerActionType.Alpha)
      _medicalViewer.AddAction(MedicalViewerActionType.Offset)
      _medicalViewer.AddAction(MedicalViewerActionType.Stack)

      ' assign the added actions to a mouse button, meaning that when the user click and drag the mouse button, the associted action will be activated.
      _medicalViewer.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
      _medicalViewer.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
      _medicalViewer.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)
      _medicalViewer.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime)

      ' Load an image and then add it to the control.
      _image = _codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "xa.dcm")
      _medicalViewer.Cells.Add(New MedicalViewerCell(_image, True, 1, 1))

      ' 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(LeadtoolsExamples.Common.ImagesPath.Path + "mr.dcm")
      _medicalViewer.Cells.Add(New MedicalViewerCell(_image, True, 2, 2))

      ' 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)


      RasterCodecs.Shutdown()
      Controls.Add(_medicalViewer)
   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 will link the active sub-cell of the first cell to the second cell and vice versa.
<Test> _
Public Sub MedicalViewerActiveSubCellChangedExample()
   Dim myForm As MedicalViewerForm = GetMedicalControl()
   Dim medicalViewer As MedicalViewer = myForm.Viewer


   AddHandler medicalViewer.ActiveSubCellChanged, AddressOf medicalViewer_ActiveSubCellChanged
   myForm.ShowDialog()
End Sub

Private Sub medicalViewer_ActiveSubCellChanged(ByVal sender As Object, ByVal e As MedicalViewerActiveSubCellChangedEventArgs)
   Dim viewer As MedicalViewer = CType(sender, MedicalViewer)
   Dim index As Integer
   If (e.CellIndex = 1) Then
      index = 0
   Else
      index = 1
   End If

   Dim stackProperties As MedicalViewerStack = CType(viewer.GetActionProperties(MedicalViewerActionType.Stack), MedicalViewerStack)

   stackProperties.ActiveSubCell = e.SubCellIndex Mod (viewer.Rows * viewer.Columns)
   stackProperties.ScrollValue = e.SubCellIndex - stackProperties.ActiveSubCell
   viewer.SetActionProperties(MedicalViewerActionType.Stack, stackProperties)

End Sub
C#Copy Code
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.Startup(); 
      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); 
 
      // add some action that will be used to change the properties of the images inside the control. 
      _medicalViewer.AddAction(MedicalViewerActionType.WindowLevel); 
      _medicalViewer.AddAction(MedicalViewerActionType.Alpha); 
      _medicalViewer.AddAction(MedicalViewerActionType.Offset); 
      _medicalViewer.AddAction(MedicalViewerActionType.Stack); 
 
      // assign the added actions to a mouse button, meaning that when the user click and drag the mouse button, the associted action will be activated. 
      _medicalViewer.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); 
      _medicalViewer.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); 
      _medicalViewer.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); 
      _medicalViewer.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); 
 
      // Load an image and then add it to the control. 
      _image = _codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "xa.dcm"); 
      _medicalViewer.Cells.Add(new MedicalViewerCell(_image, true, 1, 1)); 
 
      // 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(LeadtoolsExamples.Common.ImagesPath.Path + "mr.dcm"); 
      _medicalViewer.Cells.Add(new MedicalViewerCell(_image, true, 2, 2)); 
 
      // 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); 
 
 
      RasterCodecs.Shutdown(); 
      Controls.Add(_medicalViewer); 
   } 
   public MedicalViewer Viewer 
   { 
      get { return _medicalViewer; } 
   } 
} 
 
MedicalViewerForm GetMedicalControl() 
{ 
   return new MedicalViewerForm(); 
} 
 
// This example will link the active sub-cell of the  first cell to the second cell and vice versa. 
 
public void MedicalViewerActiveSubCellChangedExample() 
{ 
   MedicalViewerForm myForm = GetMedicalControl(); 
   MedicalViewer medicalViewer = myForm.Viewer; 
 
 
   medicalViewer.ActiveSubCellChanged += new EventHandler<MedicalViewerActiveSubCellChangedEventArgs>(medicalViewer_ActiveSubCellChanged); 
   myForm.ShowDialog(); 
} 
 
void medicalViewer_ActiveSubCellChanged(object sender, MedicalViewerActiveSubCellChangedEventArgs e) 
{ 
   MedicalViewer viewer = (MedicalViewer)sender; 
   int index = (e.CellIndex == 1) ? 0 : 1; 
 
   MedicalViewerStack stackProperties = (MedicalViewerStack)viewer.GetActionProperties(MedicalViewerActionType.Stack); 
 
   stackProperties.ActiveSubCell = e.SubCellIndex % (viewer.Rows * viewer.Columns); 
   stackProperties.ScrollValue = e.SubCellIndex - stackProperties.ActiveSubCell; 
   viewer.SetActionProperties(MedicalViewerActionType.Stack, stackProperties); 
 
}

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

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