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InteractiveCenterAt Event

Summary

Occurs when the user performs interactive center of the image display.

Syntax

C++

public event EventHandler<RasterViewerPointEventArgs> InteractiveCenterAt

  
Public Event InteractiveCenterAt As EventHandler(Of RasterViewerPointEventArgs)

public: 
event EventHandler<RasterViewerPointEventArgs^>^ InteractiveCenterAt

Event Data

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

Property	Description
Cancel (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs)	Gets or sets a value indicating whether the interactive mode should be canceled.
Point	Gets the interactive mode event data.
Status (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs)	Gets the current status of the interactive mode.

Remarks

Only occurs when the InteractiveMode property is set to RasterViewerInteractiveMode.CenterAt.

Example

This sample lets center the image in the window by clicking the mouse. Also, it displays the contents of the InteractiveCenterAt event in the console

using Leadtools.WinForms; 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Drawing; 
 
private void viewer_InteractiveCenterAt(object sender, RasterViewerPointEventArgs e) 
{ 
   Console.WriteLine("InteractiveCenterAt: e.Status {0}, e.Cancel {1}", e.Status, e.Cancel); 
} 
 
public void RasterImageViewer_InteractiveCenterAt(RasterImageViewer viewer) 
{ 
   viewer.InteractiveMode = RasterViewerInteractiveMode.CenterAt; 
   viewer.InteractiveCenterAt += new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveCenterAt); 
 
   // Click mouse on image to see the center the image 
   // After you are done, you must remove the event handler as in below 
   // 
   // viewer.InteractiveCenterAt -= new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveCenterAt); 
}

Imports Leadtools.WinForms 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Drawing 
 
Private Sub viewer_InteractiveCenterAt(ByVal sender As Object, ByVal e As RasterViewerPointEventArgs) 
   Console.WriteLine("InteractiveCenterAt: e.Status {0}, e.Cancel {1}", e.Status, e.Cancel) 
End Sub 
 
Public Sub RasterImageViewer_InteractiveCenterAt(ByVal viewer As RasterImageViewer) 
   viewer.InteractiveMode = RasterViewerInteractiveMode.CenterAt 
   AddHandler viewer.InteractiveCenterAt, AddressOf viewer_InteractiveCenterAt 
 
   ' Click mouse on image to see the center the image 
   ' After you are done, you must remove the event handler as in below 
   ' 
   ' viewer.InteractiveCenterAt -= new EventHandler<RasterViewerPointEventArgs>(viewer_InteractiveCenterAt); 
End Sub

Requirements

Target Platforms

Reference

RasterImageViewer Class

RasterImageViewer Members

Help Version 19.0.2017.10.27

Leadtools.WinForms Assembly

Introduction

Getting Started

Namespaces

Leadtools.WinForms Namespace

Assemblies