Please find attached an example where I overwrite a framework function to get informed whenever an event was not cosumed
Reasons can be:
The Statechart is not in the state to consume the event [1]
The Statechart is busy (run2completion) [0]
So in this example - the event evPing will not be consumed while beeing in the ping state - we are expecting in that case evPong to change the state
Enjoy