ImageDirtyChanged Event

Occurs when the ImageDirty value changes.

Syntax

C#
Visual Basic
Objective-C
Java
C++

public event EventHandler ImageDirtyChanged

'Declaration
 
Public Event ImageDirtyChanged As EventHandler

'Usage
 
Dim instance As AnnAutomation
Dim handler As EventHandler
 
AddHandler instance.ImageDirtyChanged, handler

public:
event EventHandler^ ImageDirtyChanged

This event will be fired after the ImageDirty value changes.

The Leadtools.RasterImage in the automation control (Either in RasterImageViewer.Image or IAnnAutomationControl.AutomationRasterImage depends on what control has been attached to this automation) might change after calling any of the following methods:

You can use this event along with the ImageDirty property to update your application user interface.

This example subscribes to the ImageDirtyChanged event of all automations in a manager, then proceeds to save the image as it changes.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Annotations
Imports Leadtools.WinForms
Imports Leadtools.Drawing

Public Sub AnnAutomation_ImageDirtyChanged(ByVal manager As AnnAutomationManager)
   ' subscribe to the ImageDirtyChanged event of all automations
   For Each automation As AnnAutomation In manager.Automations
      AddHandler automation.ImageDirtyChanged, AddressOf automation_ImageDirtyChanged
   Next automation
End Sub

Private Sub automation_ImageDirtyChanged(ByVal sender As Object, ByVal e As EventArgs)
   Dim automation As AnnAutomation = CType(IIf(TypeOf sender Is AnnAutomation, sender, Nothing), AnnAutomation)
   If automation.ImageDirty Then
      MessageBox.Show("Image has changed and needs saving!")

      '
      ' add code to save the automation.Viewer.Image here
      '

      ' set the ImageDirty flag to false
      automation.ImageDirty = False
   Else
      MessageBox.Show("Image has been saved!")
   End If
End Sub

using Leadtools;
using Leadtools.Annotations;
using Leadtools.WinForms;
using Leadtools.Drawing;

public void AnnAutomation_ImageDirtyChanged(AnnAutomationManager manager)
{
   // subscribe to the ImageDirtyChanged event of all automations
   foreach(AnnAutomation automation in manager.Automations)
      automation.ImageDirtyChanged += new EventHandler(automation_ImageDirtyChanged);
}

private void automation_ImageDirtyChanged(object sender, EventArgs e)
{
   AnnAutomation automation = sender as AnnAutomation;
   if(automation.ImageDirty)
   {
      MessageBox.Show("Image has changed and needs saving!");

      //
      // add code to save the automation.Viewer.Image here
      //

      // set the ImageDirty flag to false
      automation.ImageDirty = false;
   }
   else
      MessageBox.Show("Image has been saved!");
}

ImageDirtyChanged Event

Reference