FxRenderNotificationAPI protocol defines a host method that allows the plug-in to force host application to re-render.
Call this protocol's method when the host application requires notification that something in a plugin has changed and there is no other notification option available.
Re-Rendering Application Content
Forces the host application to render its content at the specified time.
Render Progess & Notification
FxProgressAPI protocol defines the methods implemented by a host application that allow a plug-in to report progress and support user cancellation.