The UpdateView Method is available as an add-on to the LEADTOOLS Medical Imaging toolkits.
Recalculates the cell's internal values in order to update the view according to the changes made to the image.Visual Basic (Declaration) | |
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Public Sub UpdateView() |
Visual Basic (Usage) | Copy Code |
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Dim instance As MedicalViewerCell instance.UpdateView() |
C# | |
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public void UpdateView() |
C++/CLI | |
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public: void UpdateView(); |
Visual Basic | Copy Code |
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Private Class MedicalViewerForm10 : 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) _medicalViewer.Cells.Add(cell) ' add some action 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) ' 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.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime) cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime) cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime) ' 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.WindowLevel) _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.Alpha) _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.Offset) ' 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.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime) _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active Or MedicalViewerActionFlags.RealTime) _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.Offset, 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 Public ReadOnly Property Viewer() As MedicalViewer Get Return _medicalViewer End Get End Property End Class Private Function GetMedicalControl10() As MedicalViewerForm10 Return New MedicalViewerForm10() End Function ' This example resizes the first frame of the first cell. <Test> _ Public Sub MedicalViewerUpdateViewExample1() Dim myForm As MedicalViewerForm10 = GetMedicalControl10() Dim medicalViewer As MedicalViewer = myForm.Viewer Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell) Dim size As SizeCommand = New SizeCommand() size.Width = cell.Image.Width * 2 size.Height = cell.Image.Height size.Run(cell.Image) cell.UpdateView() myForm.ShowDialog() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | Copy Code |
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class MedicalViewerForm10 : Form { private MedicalViewer _medicalViewer; void MedicalViewerForm_SizeChanged(object sender, EventArgs e) { _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); } public MedicalViewerForm10() { 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); _medicalViewer.Cells.Add(cell); // add some action 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); // 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.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); // 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.WindowLevel); _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.Alpha); _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.Offset); // 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.WindowLevel, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active | MedicalViewerActionFlags.RealTime); _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Offset, 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; } public MedicalViewer Viewer { get { return _medicalViewer; } } } MedicalViewerForm10 GetMedicalControl10() { return new MedicalViewerForm10(); } // This example resizes the first frame of the first cell. public void MedicalViewerUpdateViewExample1() { MedicalViewerForm10 myForm = GetMedicalControl10(); MedicalViewer medicalViewer = myForm.Viewer; MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(medicalViewer.Cells[0]); SizeCommand size = new SizeCommand(); size.Width = cell.Image.Width * 2; size.Height = cell.Image.Height; size.Run(cell.Image); cell.UpdateView(); myForm.ShowDialog(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
- This method is useful especially when the user applies an effect on the cell image that causes the image dimensions to change.
- This method will also repaint the cell. To repaint the cell only recalculating the internal data, use the MedicalViewerBaseCell.Invalidate method.
- To pause repainting to apply a series of effects without refreshing each time an effect is applied, use the BeginUpdate method to keep the cell from being repainted, and then use the EndUpdate method to repaint everything.
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7