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LEADTOOLS Medical (Leadtools.MedicalViewer assembly)
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ActiveSubCellChanged Event






Leadtools.MedicalViewer Namespace > MedicalViewerMultiCell Class : ActiveSubCellChanged Event
Optional delegate method for additional processing.
Syntax
'Declaration   Public Event ActiveSubCellChanged As EventHandler(Of MedicalViewerActiveSubCellChangedEventArgs)
'Usage   Dim instance As MedicalViewerMultiCell Dim handler As EventHandler(Of MedicalViewerActiveSubCellChangedEventArgs)   AddHandler instance.ActiveSubCellChanged, handler
Event Data

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

PropertyDescription
CellIndex Gets the value that indicates the index of the cell that has its active sub-cell changed. This value is only valid if the cell has been added to the MedicalViewer.
PreviousSubCellIndex Gets the value that indicates the index of the sub-cell that has lost the active state.
SubCellIndex Gets the value that indicates the index of the sub-cell that has been activated.
Example
Copy Code   
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.MedicalViewer

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()
      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 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)
      cell.AddAction(MedicalViewerActionType.Stack)

          ' 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.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active)
          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.
          cell.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448")
          cell.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame)
          cell.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale)
          cell.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData)
          cell.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView)

          _medicalViewer.Cells.Add(cell)



          ' Load another image and then add it to the control.
          _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "mr.dcm"))
          Dim cell1 As MedicalViewerMultiCell = New MedicalViewerMultiCell(_image, True, 2, 2)
          _medicalViewer.Cells.Add(cell1)

          ' add some actions that will be used to change the properties of the images inside the control.
          cell1.AddAction(MedicalViewerActionType.WindowLevel)
          cell1.AddAction(MedicalViewerActionType.Alpha)
          cell1.AddAction(MedicalViewerActionType.Offset)
          cell1.AddAction(MedicalViewerActionType.Stack)

          ' 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.
          cell1.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active)
          cell1.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active)
          cell1.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active)
          cell1.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active)

          ' adjust some properties of the cell and add some tags.
      cell1.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448")
      cell1.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame)
      cell1.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale)
      cell1.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData)
      cell1.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView)


      Controls.Add(_medicalViewer)
      _medicalViewer.Dock = DockStyle.Fill
   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.
<TestMethod()> _
Public Sub MedicalViewerActiveSubCellChangedExample()
   Dim myForm As MedicalViewerForm = GetMedicalControl()
   Dim medicalViewer As MedicalViewer = myForm.Viewer


   Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell)
   Dim cell1 As MedicalViewerMultiCell = CType(medicalViewer.Cells(1), MedicalViewerMultiCell)

   AddHandler cell.ActiveSubCellChanged, AddressOf medicalViewer_ActiveSubCellChanged
   AddHandler cell1.ActiveSubCellChanged, AddressOf cell1_ActiveSubCellChanged
   myForm.ShowDialog()
End Sub

Private Sub cell1_ActiveSubCellChanged(ByVal sender As Object, ByVal e As MedicalViewerActiveSubCellChangedEventArgs)
   medicalViewer_ActiveSubCellChanged(sender, e)
End Sub

Private Sub medicalViewer_ActiveSubCellChanged(ByVal sender As Object, ByVal e As MedicalViewerActiveSubCellChangedEventArgs)
   Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell)
   Dim index As Integer
   If (e.CellIndex = 1) Then
      index = 0
   Else
      index = 1
   End If
   Dim theOtherCell As MedicalViewerMultiCell = CType(cell.ParentViewer.Cells(index), MedicalViewerMultiCell)


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

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

End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
using Leadtools;
using Leadtools.Codecs;
using Leadtools.MedicalViewer;

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);

      // 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);
      cell.AddAction(MedicalViewerActionType.Stack);

      // 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.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active);
      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.
      cell.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448");
      cell.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame);
      cell.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale);
      cell.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData);
      cell.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView);

      _medicalViewer.Cells.Add(cell);



      // Load another image and then add it to the control.
      _image = _codecs.Load(Path.Combine(LEAD_VARS.ImagesDir,"mr.dcm"));
      MedicalViewerMultiCell cell1 = new MedicalViewerMultiCell(_image, true, 2, 2);
      _medicalViewer.Cells.Add(cell1);

      // add some actions that will be used to change the properties of the images inside the control.
      cell1.AddAction(MedicalViewerActionType.WindowLevel);
      cell1.AddAction(MedicalViewerActionType.Alpha);
      cell1.AddAction(MedicalViewerActionType.Offset);
      cell1.AddAction(MedicalViewerActionType.Stack);

      // 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.
      cell1.SetAction(MedicalViewerActionType.Stack, MedicalViewerMouseButtons.Wheel, MedicalViewerActionFlags.Active);
      cell1.SetAction(MedicalViewerActionType.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active);
      cell1.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active);
      cell1.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active);

      // adjust some properties of the cell and add some tags.
      cell1.SetTag(2, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.UserData, "EX. ID 230-36-5448");
      cell1.SetTag(4, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Frame);
      cell1.SetTag(6, MedicalViewerTagAlignment.TopLeft, MedicalViewerTagType.Scale);
      cell1.SetTag(2, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.WindowLevelData);
      cell1.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.FieldOfView);


      Controls.Add(_medicalViewer);
      _medicalViewer.Dock = DockStyle.Fill;
   }
   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.
[TestMethod]
public void MedicalViewerActiveSubCellChangedExample()
{
   MedicalViewerForm myForm = GetMedicalControl();
   MedicalViewer medicalViewer = myForm.Viewer;


   MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(medicalViewer.Cells[0]);
   MedicalViewerMultiCell cell1 = (MedicalViewerMultiCell)(medicalViewer.Cells[1]);

   cell.ActiveSubCellChanged += new EventHandler<MedicalViewerActiveSubCellChangedEventArgs>(medicalViewer_ActiveSubCellChanged);
   cell1.ActiveSubCellChanged += new EventHandler<MedicalViewerActiveSubCellChangedEventArgs>(cell1_ActiveSubCellChanged);
   myForm.ShowDialog();
}

void cell1_ActiveSubCellChanged(object sender, MedicalViewerActiveSubCellChangedEventArgs e)
{
   medicalViewer_ActiveSubCellChanged(sender, e);
}

void medicalViewer_ActiveSubCellChanged(object sender, MedicalViewerActiveSubCellChangedEventArgs e)
{
   MedicalViewerMultiCell cell = (MedicalViewerMultiCell)sender;
   int index = (e.CellIndex == 1) ? 0 : 1;
   MedicalViewerMultiCell theOtherCell = (MedicalViewerMultiCell)(cell.ParentViewer.Cells[index]);


   MedicalViewerStack stackProperties = (MedicalViewerStack)theOtherCell.GetActionProperties(MedicalViewerActionType.Stack);

   stackProperties.ActiveSubCell = e.SubCellIndex % (theOtherCell.Rows * theOtherCell.Columns);
   stackProperties.ScrollValue = e.SubCellIndex - stackProperties.ActiveSubCell;
   theOtherCell.SetActionProperties(MedicalViewerActionType.Stack, stackProperties);
   stackProperties.Dispose();

}

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

Target Platforms

See Also

Reference

MedicalViewerMultiCell Class
MedicalViewerMultiCell Members

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