ControlScrollMode Enumeration

Summary

Determines how the control displays and uses scrollbars.

Syntax

C++/CLI

public enum ControlScrollMode

public enum class ControlScrollMode sealed

Members

Auto

(0) Auto scrollbars, if the control requires scroll bars they will be visible and active. Only available if the platform supports scrollbars, otherwise, using this value is the same as using ControlScrollMode.Hidden.

Hidden

(1) Do not show scrollbars, even if the control requires them/

Disabled

(2) Disable scrolling, the scrollbars will not be visible nor activated even if the control requires them.

Remarks

ControlScrollMode is used with the following members:

ImageViewer.ScrollMode.

Example

using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
 
 
public ImageViewerForm _form = new ImageViewerForm(); 
public ImageViewer _imageViewer; 
 
public void ImageViewerScrollModeExample() 
{ 
   // Get the ImageViewer control 
   _imageViewer = _form.ImageViewer; 
 
   // Load Image 
   using (var codecs = new RasterCodecs()) 
      _imageViewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Ocr1.tif")); 
 
   // Set Zoom Mode to None 
   _imageViewer.Zoom(ControlSizeMode.None, 1.2, _imageViewer.DefaultZoomOrigin); 
 
   // Hook to the ScrollOffset event that triggers when ScrollOffset value is changed 
   _imageViewer.ScrollOffsetChanged += (sender, e) => 
   { 
      Debug.WriteLine("ScrollOffset changed: (" + _imageViewer.ScrollOffset.X + ", " + _imageViewer.ScrollOffset.Y + ")"); 
   }; 
 
   // Set ScrollMode to hidden 
   if (_imageViewer.ScrollMode != ControlScrollMode.Hidden) 
   { 
      _imageViewer.ScrollMode = ControlScrollMode.Hidden; 
      _imageViewer.ScrollOffset = new LeadPoint(100, 100); // Offset the scroll 
      _imageViewer.RestrictScroll = false; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
}

Requirements

Target Platforms

Reference

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