CellMouseDown Event

Summary
Optional delegate method for additional processing.
Syntax
C#
VB
C++
public event EventHandler<MedicalViewerCellMouseEventArgs> CellMouseDown 
  
Public Event CellMouseDown As EventHandler(Of MedicalViewerCellMouseEventArgs) 
            public: 
event EventHandler<MedicalViewerCellMouseEventArgs^>^ CellMouseDown 
Event Data

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

PropertyDescription
Button (Inherited from System.Windows.Forms.MouseEventArgs)Gets which mouse button was pressed.
CellIndex Gets the value that indicates the index of the cell that received the mouse event. This value is only valid if the cell is add to the MedicalViewer.
Clicks (Inherited from System.Windows.Forms.MouseEventArgs)Gets the number of times the mouse button was pressed and released.
Delta (Inherited from System.Windows.Forms.MouseEventArgs)Gets a signed count of the number of detents the mouse wheel has rotated, multiplied by the WHEEL_DELTA constant. A detent is one notch of the mouse wheel.
ImageRectangle Gets the rectangle that represents the image rectangle of the cell or sub-cell.
Location (Inherited from System.Windows.Forms.MouseEventArgs)Gets the location of the mouse during the generating mouse event.
Rectangle Gets the rectangle that represents the painting area of the cell or sub-cell.
SubCellIndex Gets the value that indicates the index of the sub-cell that received the mouse event.
X (Inherited from System.Windows.Forms.MouseEventArgs)Gets the x-coordinate of the mouse during the generating mouse event.
Y (Inherited from System.Windows.Forms.MouseEventArgs)Gets the y-coordinate of the mouse during the generating mouse event.
Example
C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
using Leadtools.ImageProcessing; 
 
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); 
      _medicalViewer.Cells.Add(cell); 
 
      // 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); 
 
      // 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.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. 
      _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 actions 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); 
      _medicalViewer.Cells[1].AddAction(MedicalViewerActionType.RectangleRegion); 
 
      // 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. 
      _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.RectangleRegion, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active); 
      _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active); 
      _medicalViewer.Cells[1].SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active); 
 
      // adjust some properties of 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); 
 
 
      _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.LeftCenter, MedicalViewerTagType.UserData, "Left"); 
      _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.TopCenter, MedicalViewerTagType.UserData, "Top"); 
      _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.RightCenter, MedicalViewerTagType.UserData, "Right"); 
      _medicalViewer.Cells[0].SetTag(0, MedicalViewerTagAlignment.BottomCenter, MedicalViewerTagType.UserData, "Bottom"); 
 
      Controls.Add(_medicalViewer); 
      _medicalViewer.Dock = DockStyle.Fill; 
   } 
   public MedicalViewer Viewer 
   { 
      get { return _medicalViewer; } 
   } 
} 
 
MedicalViewerForm GetMedicalControl() 
{ 
   return new MedicalViewerForm(); 
} 
 
// This example will flip the image along with the annotation container if the user click on the image using the left mouse button, and will reservse on the right mouse button, and will rotate on the middle mouse button. 
public void MedicalViewerCellMouseExample() 
{ 
   MedicalViewerForm myForm = GetMedicalControl(); 
   MedicalViewer medicalViewer = myForm.Viewer; 
   MedicalViewerMultiCell cell = (MedicalViewerMultiCell)(medicalViewer.Cells[0]); 
 
   cell.CellMouseUp +=new EventHandler<MedicalViewerCellMouseEventArgs>(medicalViewer_CellMouseUp); 
 
   myForm.ShowDialog(); 
} 
 
void medicalViewer_CellMouseUp(object sender, MedicalViewerCellMouseEventArgs e) 
{ 
   MedicalViewerMultiCell cell = (MedicalViewerMultiCell)sender; 
   FlipCommand flipCommand; 
   switch (e.Button) 
   { 
      case MouseButtons.Left: 
         flipCommand = new FlipCommand(); 
         cell.Image.Page = e.SubCellIndex + 1; 
         flipCommand.Run(cell.Image); 
         cell.FlipAnnotationContainer(e.SubCellIndex); 
         cell.Invalidate(); 
         cell.FlipLabels(); 
         break; 
      case MouseButtons.Middle: 
         RotateCommand rotateCommand = new RotateCommand(9000, RotateCommandFlags.Bicubic, new RasterColor(0, 0, 0)); 
         cell.Image.Page = e.SubCellIndex + 1; 
         rotateCommand.Run(cell.Image); 
         int angle = cell.GetRotateImagePerspectiveAngle(0); 
         cell.RotateAnnotationContainer(90, e.SubCellIndex); 
         cell.RotateLabels(90); 
         cell.Invalidate(); 
         break; 
      case MouseButtons.Right: 
         flipCommand = new FlipCommand(true); 
         cell.Image.Page = e.SubCellIndex + 1; 
         flipCommand.Run(cell.Image); 
         cell.ReverseAnnotationContainer(e.SubCellIndex); 
         cell.Invalidate(); 
         cell.ReverseLabels(); 
         break; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS21\Resources\Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.MedicalViewer 
Imports Leadtools.ImageProcessing 
 
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) 
      _medicalViewer.Cells.Add(cell) 
 
      ' 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) 
 
      ' 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.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. 
      _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 actions 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) 
      _medicalViewer.Cells(1).AddAction(MedicalViewerActionType.RectangleRegion) 
 
      ' 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. 
      _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.RectangleRegion, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active) 
      _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active) 
      _medicalViewer.Cells(1).SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active) 
 
      ' adjust some properties of 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 GetMedicalControl() As MedicalViewerForm 
   Return New MedicalViewerForm() 
End Function 
 
' This example will flip the image along with the annotation container if the user click on the image using the left mouse button, and will reservse on the right mouse button, and will rotate on the middle mouse button. 
<TestMethod()> _ 
Public Sub MedicalViewerCellMouseExample() 
   Dim myForm As MedicalViewerForm = GetMedicalControl() 
   Dim medicalViewer As MedicalViewer = myForm.Viewer 
   Dim cell As MedicalViewerMultiCell = CType(medicalViewer.Cells(0), MedicalViewerMultiCell) 
 
   AddHandler cell.CellMouseUp, AddressOf medicalViewer_CellMouseUp 
 
   myForm.ShowDialog() 
End Sub 
 
Private Sub medicalViewer_CellMouseUp(ByVal sender As Object, ByVal e As MedicalViewerCellMouseEventArgs) 
   Dim cell As MedicalViewerMultiCell = CType(sender, MedicalViewerMultiCell) 
   Dim flipCommand As FlipCommand 
   Select Case e.Button 
      Case MouseButtons.Left 
         flipCommand = New FlipCommand() 
         cell.Image.Page = e.SubCellIndex + 1 
         flipCommand.Run(cell.Image) 
         cell.FlipAnnotationContainer(e.SubCellIndex) 
         cell.Invalidate() 
      Case MouseButtons.Middle 
         Dim rotateCommand As RotateCommand = New RotateCommand(900, RotateCommandFlags.Bicubic, New RasterColor(0, 0, 0)) 
         cell.Image.Page = e.SubCellIndex + 1 
         rotateCommand.Run(cell.Image) 
         Dim angle As Integer = cell.GetRotateImagePerspectiveAngle(0) 
         cell.RotateAnnotationContainer(angle, e.SubCellIndex) 
         cell.Invalidate() 
      Case MouseButtons.Right 
         flipCommand = New FlipCommand(True) 
         cell.Image.Page = e.SubCellIndex + 1 
         flipCommand.Run(cell.Image) 
         cell.ReverseAnnotationContainer(e.SubCellIndex) 
         cell.Invalidate() 
   End Select 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\LEADTOOLS21\Resources\Images" 
End Class 
Requirements

Target Platforms

Help Version 21.0.2021.6.30
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Leadtools.MedicalViewer Assembly

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© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.