SmartGlassTextEntrySurface.TextChanged Event

public:
event TypedEventHandler<SmartGlassTextEntrySurface^ , SmartGlassTextEntryEventArgs^ >^ TextChanged {
         EventRegistrationToken add (TypedEventHandler<SmartGlassTextEntrySurface^ , SmartGlassTextEntryEventArgs^ >^ value);
         void remove (EventRegistrationToken token);
}