How to get return data from a dynamically called vi?

[Francois Normandin]

You keep talking about passing the Event Reg Ref... and I'm surprised no one has mentioned this yet but you can not pass that reference around.

The proper usage of it is to be used within the same chain of VI's as in same VI as event structure or maybe passed out of a subVI for simplicity purposes only to be passed to the calling VI but never to a dynamically called VI.

I smashed my head yesterday for a full hour trying to find out why my "Generate Event" didn't work before I read this token. I was creating the Event Registry Refnum AND User Event Refnum in a subVI from which I then passed the Event Reg to my Dynamically spawned VI and the User Event Refnum to my static VI. The fun part is that it worked great when I was in "debug mode" (with a Dialog Window popping out) but the event didn't get registered when I disabled the dialog box... I was telling my girlfriend this analogy yesterday:

"It's like if I were speaking to you in German and you couldn't understand until I dropped an apple on the table, and then you could understand... bis ich den Apfel entfernt wieder.*".

See the picture below: if I enabled the disable diagram node, it would work...

* If your german ears are shocked, I apologize for Google's mishaps...