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StartDrawingAnnotation Event

Summary

Optional delegate method for additional processing.

Syntax

C++/CLI

public event EventHandler<MedicalViewerDrawingAnnotationsEventArgs> StartDrawingAnnotation

            public: 
event EventHandler<MedicalViewerDrawingAnnotationsEventArgs^>^ StartDrawingAnnotation

Event Data

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

Property	Description
Container	Gets the annotation container that contains the annotation object to be created.
Object	Gets the object that is being created.
SubCellIndex	Gets the sub-cell index of the cell that contains the container of the object that is being created.
Type	Gets the enumeration value that determines the type of the object being created.

Example

using Leadtools; 
using Leadtools.Dicom; 
using Leadtools.Medical3D; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Core; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Annotations.Engine; 
using Leadtools.Annotations.Designers; 
 
// This example makes the color of each newly created object blue. 
class MedicalViewerStartDrawingAnnotationForm : Form 
{ 
   private MedicalViewer _medicalViewer; 
   private RasterImage _image; 
 
 
   void MedicalViewerLocalizer_SizeChanged(object sender, EventArgs e) 
   { 
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
   } 
 
   public MedicalViewerStartDrawingAnnotationForm() 
   { 
      DicomEngine.Startup(); 
      RasterCodecs _codecs = new RasterCodecs(); 
 
      this.SizeChanged += new EventHandler(MedicalViewerLocalizer_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); 
      cell.StartDrawingAnnotation += new EventHandler<MedicalViewerDrawingAnnotationsEventArgs>(cell_StartDrawingAnnotation); 
 
      cell.AddAction(MedicalViewerActionType.AnnotationRectangle); 
      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.AnnotationRectangle, MedicalViewerMouseButtons.Left, MedicalViewerActionFlags.Active); 
      cell.SetAction(MedicalViewerActionType.Alpha, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active); 
      cell.SetAction(MedicalViewerActionType.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active); 
 
      Controls.Add(_medicalViewer); 
      _medicalViewer.Dock = DockStyle.Fill; 
      DicomEngine.Shutdown(); 
   } 
 
   void cell_StartDrawingAnnotation(object sender, MedicalViewerDrawingAnnotationsEventArgs e) 
   { 
      e.Object.Fill = AnnSolidColorBrush.Create(Color.Red.Name); 
   } 
 
   void MedicalViewerLocalizer_FormClosing(object sender, FormClosingEventArgs e) 
   { 
   } 
 
   public MedicalViewer Viewer 
   { 
      get { return _medicalViewer; } 
   } 
} 
 
MedicalViewerStartDrawingAnnotationForm GetMedicalViewerStartDrawingAnnotationForm() 
{ 
   MedicalViewerSeriesManagerFrom form = new MedicalViewerSeriesManagerFrom(); 
   return new MedicalViewerStartDrawingAnnotationForm(); 
} 
 
// This example changes the default window level value by decrease the width by 100. Then resets the images based on the new value. 
public void MedicalViewerStartDrawingAnnotationExample() 
{ 
   MedicalViewerStartDrawingAnnotationForm myForm = GetMedicalViewerStartDrawingAnnotationForm(); 
   MedicalViewer medicalViewer = myForm.Viewer; 
 
   myForm.ShowDialog(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

MedicalViewerBaseCell Class

MedicalViewerBaseCell Members

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Help Version 23.0.2024.2.29

Leadtools.MedicalViewer Assembly

Introduction

Getting Started

Namespaces

Leadtools.MedicalViewer Namespace

Assemblies