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GetDisplayedImageRectangle Method

Summary

Gets the System.Drawing.Rectangle that represents the image boundaries. This changes as you zoom in/out or offset the image.

Syntax

C++/CLI

public Rectangle GetDisplayedImageRectangle()

            public: 
Rectangle GetDisplayedImageRectangle();

Return Value

A System.Drawing.Rectanglethat represents the image boundaries. This changes as you zoom in/out or offset the image.

Remarks

To get the rectangle of displayed area of the image, call the method GetDisplayedClippedImageRectangle
To get the rectangle of cell or the sub-cell, call the method GetDisplayedRectangle

Example

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.MedicalViewer; 
 
public void GetDisplayedClippedImageRectangle() 
{ 
   GetDispalyedClippedImageRectangleMainForm form = new GetDispalyedClippedImageRectangleMainForm(); 
   form.ShowDialog(); 
} 
 
// GetDispalyedClippedImageRectangleMainForm will be the owner of the medical viewer control. 
class GetDispalyedClippedImageRectangleMainForm : Form 
{ 
   public MedicalViewer _medicalViewer; 
 
   void MedicalViewerForm_SizeChanged(object sender, EventArgs e) 
   { 
      _medicalViewer.Size = new Size(this.ClientRectangle.Right, this.ClientRectangle.Bottom); 
   } 
 
   public GetDispalyedClippedImageRectangleMainForm() 
   { 
      RasterCodecs _codecs = new RasterCodecs(); 
      RasterImage _image; 
 
      // Create the medical viewer and adjust some properties. 
      _medicalViewer = new MedicalViewer(); 
      _medicalViewer.Rows = 2; 
      _medicalViewer.Columns = 1; 
      _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, "image2.cmp")); 
 
      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.Scale); 
      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.Offset, MedicalViewerMouseButtons.Right, MedicalViewerActionFlags.Active); 
      cell.SetAction(MedicalViewerActionType.Scale, MedicalViewerMouseButtons.Middle, MedicalViewerActionFlags.Active); 
 
      cell.SetTag(1, MedicalViewerTagAlignment.BottomLeft, MedicalViewerTagType.UserData); 
      cell.UIChanged += new EventHandler<MedicalViewerUIChangedEventArgs>(Viewer_UIChanged); 
 
      _medicalViewer.Cells.Add(cell); 
 
      Controls.Add(_medicalViewer); 
      _medicalViewer.Dock = DockStyle.Fill; 
   } 
 
   void Viewer_UIChanged(object sender, MedicalViewerUIChangedEventArgs e) 
   { 
      MedicalViewerMultiCell cell = (MedicalViewerMultiCell)sender; 
      if (e.ActionType == MedicalViewerActionType.Offset || e.ActionType == MedicalViewerActionType.Scale) 
      { 
         Rectangle theClippedRectangle = cell.GetDisplayedClippedImageRectangle(); 
         Rectangle ImageRectangle = cell.GetDisplayedImageRectangle(); 
 
         int Ratio = (theClippedRectangle.Width * theClippedRectangle.Height) * 1000 / (ImageRectangle.Width * ImageRectangle.Height); 
 
         double doubleRatio = Ratio / 1000.0; 
 
         MedicalViewerTagInformation info = new MedicalViewerTagInformation(1, MedicalViewerTagAlignment.BottomLeft, "Area of the image visible is " + (doubleRatio * 100).ToString() + "% of the whole image", MedicalViewerTagType.UserData); 
         _medicalViewer.Cells[e.CellIndex].EditTag(1, MedicalViewerTagAlignment.BottomLeft, info); 
      } 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

MedicalViewerCell Class

MedicalViewerCell Members

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Help Version 22.0.2023.2.5

Leadtools.MedicalViewer Assembly

Introduction

Getting Started

Namespaces

Leadtools.MedicalViewer Namespace

Assemblies