Hi Christian
I wonder if it is possible to use events for passing in data to states.
Yes, it is. You can define a transition action, which receives the triggering event as a parameter. Problem is, the UML standard mandates that the transition action is executed when all states of the origin state configuration have been left and before any of the states of the destination configuration are entered. Only the innermost common context or any of its contexts can therefore store the event data.
I even cannot find some hints in the statechart documentation how to determine in some state which event caused a transistion to the this state!
There is a to-do item (no. 2) for this: http://www.boost.org/libs/statechart/doc/future_and_history.html#ToDoList Please let me know whether that would cover what you need. Thanks, -- Andreas Huber When replying by private email, please remove the words spam and trap from the address shown in the header.