Leadtools.MedicalViewer Requires Medical Imaging license | Send comments on this topic. | Back to Introduction - All Topics | Help Version 16.5.9.25
MedicalViewerRequestedFramesInformationEventArgs Class
See Also  Members   Example 
Leadtools.MedicalViewer Namespace : MedicalViewerRequestedFramesInformationEventArgs Class



The MedicalViewerRequestedFramesInformationEventArgs class provides data for the MedicalViewer MedicalViewer.FramesRequested event.

Syntax

Visual Basic (Declaration) 
Public Class MedicalViewerRequestedFramesInformationEventArgs 
   Inherits EventArgs
Visual Basic (Usage)Copy Code
Dim instance As MedicalViewerRequestedFramesInformationEventArgs
C# 
public class MedicalViewerRequestedFramesInformationEventArgs : EventArgs
C++/CLI 
public ref class MedicalViewerRequestedFramesInformationEventArgs : public EventArgs

Example

Visual BasicCopy Code
Private Class MedicalViewerForm : Inherits Form
   Private _medicalViewer As MedicalViewer
   Public label As Label
   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 - 10)

      ' 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)

      ' 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.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.
      Dim cell As MedicalViewerCell = New MedicalViewerCell()
      cell.Rows = 1
      cell.Columns = 1
      cell.FitImageToCell = True

      _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(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)

      label = New Label()
      label.Location = New Point(0, Me.ClientRectangle.Bottom - 10)
      label.Size = New Size(Me.ClientRectangle.Right, 10)
      label.Text = "Here the statistical information will appear"

      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 shows how to use the low memroy usage feature to display a medical image with multiple pages. it will also invert all the bitmap to show the invert function works even if the bitmap is not loaded yet.

Public Sub MedicalViewerLowMemoryUsageExample()
   Dim myForm As MedicalViewerForm = GetMedicalControl()
   Dim medicalViewer As MedicalViewer = myForm.Viewer


   RasterCodecs.Startup()
   Dim codecs As RasterCodecs = New RasterCodecs()
   Dim i As Integer = 0
   Dim count As Integer


   Dim info As CodecsImageInfo
   Dim fileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "xa.dcm"
   info = codecs.GetInformation(fileName, True)
   count = info.TotalPages
   Dim a As MedicalViewerImageInformation() = New MedicalViewerImageInformation(count - 1) {}

   i = 0
   Do While i < count
      info = codecs.GetInformation(fileName, True, i + 1)
      a(i) = New MedicalViewerImageInformation()
      a(i).ImageHeight = info.Height
      a(i).ImageWidth = info.Width
      a(i).XResolution = info.XResolution
      a(i).YResolution = info.YResolution
      i += 1
   Loop

   AddHandler medicalViewer.ActiveSubCellChanged, AddressOf medicalViewer_ActiveSubCellChanged1
   AddHandler medicalViewer.FramesRequested, AddressOf medicalViewer_FramesRequested
   medicalViewer.Cells(0).EnableLowMemoryUsage(2, count, a)
   myForm.ShowDialog()
   RasterCodecs.Shutdown()
End Sub

Private Sub medicalViewer_ActiveSubCellChanged1(ByVal sender As Object, ByVal e As MedicalViewerActiveSubCellChangedEventArgs)
   Dim imageInformation As String = ""
   Dim viewer As MedicalViewer = CType(sender, MedicalViewer)
   If viewer.Cells(0).VirtualImage(e.SubCellIndex).ImageExist Then
      imageInformation = "Image bit per pixel = " & viewer.Cells(0).VirtualImage(e.SubCellIndex).Image.BitsPerPixel.ToString()
   End If

   CType(viewer.Parent, MedicalViewerForm).label.Text = imageInformation & " HasRegion = " & viewer.Cells(0).VirtualImage(e.SubCellIndex).HasRegion
End Sub

Private Sub medicalViewer_FramesRequested(ByVal sender As Object, ByVal e As MedicalViewerRequestedFramesInformationEventArgs)
   Dim fileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "xa.dcm"
   Dim _codecs As RasterCodecs = New RasterCodecs()
   Dim i As Integer
   Dim b As RasterImage

   If e.RequestedFramesIndexes.Length > 0 Then
      b = _codecs.Load(fileName, 0, CodecsLoadByteOrder.BgrOrGray, e.RequestedFramesIndexes(0) + 1, e.RequestedFramesIndexes(0) + 1)
   Else
      Return
   End If

   i = 1
   Do While i < e.RequestedFramesIndexes.Length
      b.AddPage(_codecs.Load(fileName, 0, CodecsLoadByteOrder.BgrOrGray, e.RequestedFramesIndexes(i) + 1, e.RequestedFramesIndexes(i) + 1))
      i += 1
   Loop

   CType(sender, MedicalViewer).Cells(e.CellIndex).SetRequestedImage(b, e.RequestedFramesIndexes, MedicalViewerSetImageOptions.Insert)
End Sub
C#Copy Code
class MedicalViewerForm : Form 
{ 
   private MedicalViewer _medicalViewer; 
   public Label label; 
   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 - 10); 
 
      // 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); 
 
      // 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.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");*/ 
      MedicalViewerCell cell = new MedicalViewerCell(); 
      cell.Rows = 1; 
      cell.Columns = 1; 
      cell.FitImageToCell = true; 
 
      _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(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); 
 
      label = new Label(); 
      label.Location = new Point(0, this.ClientRectangle.Bottom - 10); 
      label.Size = new Size(this.ClientRectangle.Right, 10); 
      label.Text = "Here the statistical information will appear"; 
 
      RasterCodecs.Shutdown(); 
      Controls.Add(_medicalViewer); 
   } 
   public MedicalViewer Viewer 
   { 
      get { return _medicalViewer; } 
   } 
} 
 
MedicalViewerForm GetMedicalControl() 
{ 
   return new MedicalViewerForm(); 
} 
 
// This example shows how to use the low memroy usage feature to display a medical image with multiple pages. it will also invert all the bitmap to show the invert function works even if the bitmap is not loaded yet. 
 
public void MedicalViewerLowMemoryUsageExample() 
{ 
   MedicalViewerForm myForm = GetMedicalControl(); 
   MedicalViewer medicalViewer = myForm.Viewer; 
 
 
   RasterCodecs.Startup(); 
   RasterCodecs codecs = new RasterCodecs(); 
   int i = 0; 
   int count; 
 
 
   CodecsImageInfo info; 
   string fileName = LeadtoolsExamples.Common.ImagesPath.Path + "xa.dcm"; 
   info = codecs.GetInformation(fileName, true); 
   count = info.TotalPages; 
   MedicalViewerImageInformation[] a = new MedicalViewerImageInformation[count]; 
 
   for (i = 0; i < count; i++) 
   { 
      info = codecs.GetInformation(fileName, true, i + 1); 
      a[i] = new MedicalViewerImageInformation(); 
      a[i].ImageHeight = info.Height; 
      a[i].ImageWidth = info.Width; 
      a[i].XResolution = info.XResolution; 
      a[i].YResolution = info.YResolution; 
   } 
 
   medicalViewer.ActiveSubCellChanged += new EventHandler<MedicalViewerActiveSubCellChangedEventArgs>(medicalViewer_ActiveSubCellChanged1); 
   medicalViewer.FramesRequested += new EventHandler<MedicalViewerRequestedFramesInformationEventArgs>(medicalViewer_FramesRequested); 
   medicalViewer.Cells[0].EnableLowMemoryUsage(2, count, a); 
   myForm.ShowDialog(); 
   RasterCodecs.Shutdown(); 
} 
 
void medicalViewer_ActiveSubCellChanged1(object sender, MedicalViewerActiveSubCellChangedEventArgs e) 
{ 
   string imageInformation = ""; 
   MedicalViewer viewer = (MedicalViewer)sender; 
   if (viewer.Cells[0].VirtualImage[e.SubCellIndex].ImageExist) 
   { 
      imageInformation = "Image bit per pixel = " + viewer.Cells[0].VirtualImage[e.SubCellIndex].Image.BitsPerPixel.ToString(); 
   } 
 
   ((MedicalViewerForm)(viewer.Parent)).label.Text = imageInformation + " HasRegion = " + viewer.Cells[0].VirtualImage[e.SubCellIndex].HasRegion; 
} 
 
void medicalViewer_FramesRequested(object sender, MedicalViewerRequestedFramesInformationEventArgs e) 
{ 
   string fileName = LeadtoolsExamples.Common.ImagesPath.Path + "xa.dcm"; 
   RasterCodecs _codecs = new RasterCodecs(); 
   int i; 
   RasterImage b; 
 
   if (e.RequestedFramesIndexes.Length > 0) 
   { 
      b = _codecs.Load(fileName, 0, CodecsLoadByteOrder.BgrOrGray, e.RequestedFramesIndexes[0] + 1, e.RequestedFramesIndexes[0] + 1); 
   } 
   else 
      return; 
 
   for (i = 1; i < e.RequestedFramesIndexes.Length; i++) 
   { 
      b.AddPage(_codecs.Load(fileName, 0, CodecsLoadByteOrder.BgrOrGray, e.RequestedFramesIndexes[i] + 1, e.RequestedFramesIndexes[i] + 1)); 
   } 
 
   ((MedicalViewer)sender).Cells[e.CellIndex].SetRequestedImage(b, e.RequestedFramesIndexes, MedicalViewerSetImageOptions.Insert); 
}

Inheritance Hierarchy

System.Object
   System.EventArgs
      Leadtools.MedicalViewer.MedicalViewerRequestedFramesInformationEventArgs

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