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OnDrawImage Method

Summary

Raises the DrawImage event.

Syntax
C#
VB
C++
protected virtual void OnDrawImage( 
   ImageViewerSpyGlassDrawImageEventArgs e 
) 
Protected Overridable Sub OnDrawImage( 
   ByVal e As ImageViewerSpyGlassDrawImageEventArgs 
) 
protected:  
   virtual void OnDrawImage( 
      ImageViewerSpyGlassDrawImageEventArgs^ e 
   ) 

Parameters

e

Event data

Remarks

Raising an event invokes the event handler through a function. The OnDrawImage method also allows derived classes to handle the event without attaching a function to the event. This is the preferred technique for handling the event in a derived class.

Note to Inheritors: When overriding OnDrawImage in a derived class, be sure to call the base class's OnDrawImage method so that registered delegates receive the event.

Requirements

Target Platforms

Help Version 20.0.2020.4.3
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