How can I handel Event in a customized ActiveX

How can I handel Event in a customized ActiveX

Hello,
I have a customized acitvex application, which I managed to bring into one of the ZenOn screens. It does its job. I have declared and initialized an event in this application, I tried calling and handling this event from application. But no idea, ZenOn has no response to this event, when it triggers. I checked this same with excel and it responds correct. Does someone have an idea, where did I go wrong.
other events like dynpicture _open, listbox_click executes perfect.
Regards,
Jyothiswaroop

This is a migrated post! Originally posted on 29.07.2014 by user jyo. Please be aware that information can be outdated.