LEADTOOLS Windows Forms (Leadtools.WinForms assembly)

OnImageColorChanged Method

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Example 





An System.EventArgs that contains the event data.
Raises the ImageColorChanged event.
Syntax
protected virtual void OnImageColorChanged( 
   EventArgs e
)
'Declaration
 
Protected Overridable Sub OnImageColorChanged( _
   ByVal e As EventArgs _
) 
'Usage
 
Dim instance As RasterImagePanViewer
Dim e As EventArgs
 
instance.OnImageColorChanged(e)

            

            
protected:
virtual void OnImageColorChanged( 
   EventArgs^ e
) 

Parameters

e
An System.EventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate. The OnImageColorChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class. Notes to Inheritors: When overriding OnImageColorChanged in a derived class, be sure to call the base class's OnImageColorChanged method so that registered delegates receive the event.
Example
Copy Code  
Imports Leadtools.WinForms
Imports Leadtools
Imports Leadtools.Codecs

Public Class MyRasterImagePanViewer
   Inherits RasterImagePanViewer
   '.
   '.
   '.
   Protected Overrides Sub OnViewerChanged(ByVal e As EventArgs)
      MyBase.OnViewerChanged(e)
      Console.WriteLine("OnViewerChanged is called")
   End Sub

   Protected Overrides Sub OnRectangleColorChanged(ByVal e As EventArgs)
      MyBase.OnRectangleColorChanged(e)

      Console.WriteLine("OnRectangleColorChanged is called")
   End Sub

   Protected Overrides Sub OnImageColorChanged(ByVal e As EventArgs)
      MyBase.OnImageColorChanged(e)

      Console.WriteLine("OnImageColorChanged is called")
   End Sub

   Protected Overrides Sub OnClipCursorChanged(ByVal e As EventArgs)
      MyBase.OnClipCursorChanged(e)

      Console.WriteLine("OnClipCursorChanged is called")
   End Sub

   Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
      MyBase.OnPaint(e)

      Console.WriteLine("OnPaint is called")
   End Sub

   Protected Overrides Sub OnMouseDown(ByVal e As MouseEventArgs)
      MyBase.OnMouseDown(e)

      Console.WriteLine("OnMouseDown is called")
   End Sub

   Protected Overrides Sub OnMouseMove(ByVal e As MouseEventArgs)
      MyBase.OnMouseMove(e)

      Console.WriteLine("OnMouseMove is called")
   End Sub

   Protected Overrides Sub OnMouseUp(ByVal e As MouseEventArgs)
      MyBase.OnMouseUp(e)

      Console.WriteLine("OnMouseUp is called")
   End Sub

   Protected Overrides Sub OnLostFocus(ByVal e As EventArgs)
      MyBase.OnLostFocus(e)

      Console.WriteLine("OnLostFocus is called")
   End Sub

   Protected Overrides Sub OnSizeChanged(ByVal e As EventArgs)
      MyBase.OnSizeChanged(e)

      Console.WriteLine("OnSizeChanged is called")
   End Sub
End Class
using Leadtools.WinForms;
using Leadtools;
using Leadtools.Codecs;

public class MyRasterImagePanViewer : RasterImagePanViewer
{
   //.
   //.
   //.
   protected override void OnViewerChanged(EventArgs e)
   {
      base.OnViewerChanged(e);
      Console.WriteLine("OnViewerChanged is called");
   }

   protected override void OnRectangleColorChanged(EventArgs e)
   {
      base.OnRectangleColorChanged(e);

      Console.WriteLine("OnRectangleColorChanged is called");
   }

   protected override void OnImageColorChanged(EventArgs e)
   {
      base.OnImageColorChanged(e);

      Console.WriteLine("OnImageColorChanged is called");
   }

   protected override void OnClipCursorChanged(EventArgs e)
   {
      base.OnClipCursorChanged(e);

      Console.WriteLine("OnClipCursorChanged is called");
   }

   protected override void OnPaint(PaintEventArgs e)
   {
      base.OnPaint(e);

      Console.WriteLine("OnPaint is called");
   }

   protected override void OnMouseDown(MouseEventArgs e)
   {
      base.OnMouseDown(e);

      Console.WriteLine("OnMouseDown is called");
   }

   protected override void OnMouseMove(MouseEventArgs e)
   {
      base.OnMouseMove(e);

      Console.WriteLine("OnMouseMove is called");
   }

   protected override void OnMouseUp(MouseEventArgs e)
   {
      base.OnMouseUp(e);

      Console.WriteLine("OnMouseUp is called");
   }

   protected override void OnLostFocus(EventArgs e)
   {
      base.OnLostFocus(e);

      Console.WriteLine("OnLostFocus is called");
   }

   protected override void OnSizeChanged(EventArgs e)
   {
      base.OnSizeChanged(e);

      Console.WriteLine("OnSizeChanged is called");
   }
}
Requirements

Target Platforms

See Also

Reference

RasterImagePanViewer Class
RasterImagePanViewer Members

 

 


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