ControlInertiaScrollOptions Structure

Summary

Options to use with inertia scroll support.

Syntax

C++/CLI

public struct ControlInertiaScrollOptions

public value class ControlInertiaScrollOptions sealed

Remarks

To enable inertia scroll, get the options from the property, set the value of IsEnabled to true, and then set the value back into the property.

ImageViewerPanZoomInteractiveMode supports inertia scrolling when panning the image.

Use CalculateInertia to pass a custom decleration function of type CalculateInertiaCallback for inertia scrolling, or DefaultBezierPoint1, DefaultBezierPoint2, DefaultDuration, and DefaultPower to change the deceleration of the default inertia function DefaultCalculateInertia.

See CreateDefault for the default values of this object.

Example

using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
 
 
public void ImageViewer_Example() 
{ 
   // Create the form that holds the ImageViewer 
   new MyForm().ShowDialog(); 
} 
 
class MyForm : Form 
{ 
   public MyForm() 
   { 
      this.Size = new Size(800, 800); 
   } 
 
   // LEADTOOLS ImageViewer to be used with this example 
   private ImageViewer _imageViewer; 
   // Information label 
   private Label _label; 
 
   protected override void OnLoad(EventArgs e) 
   { 
      // Create a panel to the top 
      var panel = new Panel(); 
      panel.Dock = DockStyle.Top; 
      panel.BorderStyle = BorderStyle.FixedSingle; 
      this.Controls.Add(panel); 
 
      // Add an "Example" button to the panel 
      var button = new Button(); 
      button.Text = "&Example"; 
      button.Click += (sender, e1) => Example(); 
      panel.Controls.Add(button); 
 
      // Add a label to the panel 
      _label = new Label(); 
      _label.Top = button.Bottom; 
      _label.Width = 800; 
      _label.Text = "Example..."; 
      panel.Controls.Add(_label); 
 
      // Create the image viewer taking the rest of the form 
      _imageViewer = new ImageViewer(); 
      _imageViewer.Dock = DockStyle.Fill; 
      _imageViewer.BackColor = Color.Bisque; 
      this.Controls.Add(_imageViewer); 
      _imageViewer.BringToFront(); 
 
      // Add Pan/Zoom interactive mode 
      // Click and drag to pan, CTRL-Click and drag to zoom in and out 
      _imageViewer.DefaultInteractiveMode = new ImageViewerPanZoomInteractiveMode(); 
 
      // Load an image 
      using (var codecs = new RasterCodecs()) 
         _imageViewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp")); 
 
      base.OnLoad(e); 
   } 
 
   private void Example() 
   { 
      // Example code goes here 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
}

Requirements

Target Platforms

Reference

Leadtools.Controls Namespace

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Help Version 22.0.2023.1.24

Leadtools.Controls Assembly

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Getting Started

Namespaces

Leadtools.Controls Namespace

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