LEADTOOLS Medical (Leadtools.MedicalViewer assembly)
LEAD Technologies, Inc

ActiveSubCellChanged Event

Example 





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
add_ActiveSubCellChanged(function(sender, e))
remove_ActiveSubCellChanged(function(sender, e))

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
 
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.

   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
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.

   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: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

MedicalViewerMultiCell Class
MedicalViewerMultiCell Members

 

 


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