ImageViewer Property

Summary

Gets or sets the image viewer used as the pan source.

Syntax

C++/CLI

public ImageViewer ImageViewer { get; set; }

public:  
   property ImageViewer^ ImageViewer 
   { 
      ImageViewer^ get() 
      void set(ImageViewer^ value) 
   }

Property Value

The image viewer used as the pan source. Default value is null.

Remarks

Set this value to the source image viewer instance for the pan. Refer to ImageViewerPanControl for more information.

When a new viewer is set to ImageViewer, this control will hook to the TransformChanged and RedirectRender events of the viewer to track when the user pans and to render the content of the viewer along with the pan rectangle to the external control.

If the value of EnablePan is set to true then clicking and dragging on the control surface will move the pan rectangle in the external control and pan the view in the image viewer accordingly.

Notice that if you have multiple viewers in your application, then you can use any of them to be the source of the pan. Simple set the viewer into the ImageViewer property. Switch to any other viewer instance at any time. To stop panning, you can set ImageViewer to null.

Example

using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
 
public void ImageViewerPanControl_Example() 
{ 
   PictureBox control = new PictureBox(); 
   control.Width = 400; 
   control.Dock = DockStyle.Left; 
   _control.Controls.Add(control); 
 
   control.BringToFront(); 
   _imageViewer.BringToFront(); 
 
   ImageViewerPanControl panControl = new ImageViewerPanControl(); 
   panControl.EnablePan = true; 
   panControl.BorderPen = Pens.Yellow; 
   //panControl.InsideBrush = new SolidBrush(Color.FromArgb(128, 0, 0, 0)); 
   panControl.OutsideBrush = new SolidBrush(Color.FromArgb(128, 0, 0, 0)); 
   panControl.WorkingCursor = Cursors.Hand; 
   panControl.Control = control; 
   panControl.MouseButton = MouseButtons.Left; 
 
   panControl.ImageViewer = _imageViewer; 
}

Requirements

Target Platforms

Reference

ImageViewerPanControl Class

ImageViewerPanControl Members

Leadtools.Controls Namespace

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Help Version 23.0.2024.2.29

Leadtools.Controls Assembly

Introduction

Getting Started

Namespaces

Leadtools.Controls Namespace

Assemblies