When I am using dynamic events and transmit a counter as event data each time I fire the event, I can have multiple consumers that receive the identical count. Thus, only a single event is generated each time and signaled to all consumers. Ok, so far.
Now, I am using the Register Event Callback function in LV8.2. to fire events from an ActiveX component (pressing buttons on a joystick device) and use a dynamic event to signal this to multiple consumers. Again, I add a counter to the dynamic event data. What happens now is that the consumers receive different counts, even if I only click the joystick button once. As if there are multiple events generated. For 2 consumers, 2 events are being generated, for 3 consumer 3 events and so on. But how would the callback VI know that there are multiple consumers?
I tried reentrant and non-reentrant callback VIs and see no difference ("reentrant" is specified in Help, but I do not fully understand why that should be needed).
Could anyone explain this behaviour to me? Thank you!
Dirk
