A token that is returned when an event handler is added to a wrt event. The token is used to remove the event handler from the event at a later time.
See Also: EventRegistrationToken Members
Use the System.Runtime.InteropServices.WindowsRuntime.EventRegistrationToken structure only if you use native wrt techniques to add and remove event handlers for wrt events. If you use the syntax that is provided by the C# or Visual Basic languages to add and remove event handlers, System.Runtime.InteropServices.WindowsRuntime.EventRegistrationToken is an implementation detail handled by the compilers.