add_preRenderImage(function(sender, e))
preRenderImage.add(function(sender, e))
remove_preRenderImage(function(sender, e))
preRenderImage.remove(function(sender, e))
    
            
        
            Users can attach to this event to be notified before the control renders the image. For example, this event can be used to set anti-aliasing values in the context before the image is rendered.
| Parameter | Type | Description | 
|---|---|---|
| sender | 'var' | The source of the event. | 
| e | ImageViewerRenderEventArgs | The event data. |