How to retrieve calendar event props from click?

I have a calendar in which I have created some events of type CXTPCalendarEventPtr, like this:
CXTPCalendarEventPtr pEvt = EventFromItemAtPoint(pItemDrop, point);
                    if(pEvt)
                    {
                         CXTPCalendarData * pDP = GetDataProvider();
                         if(pDP)
                              pDP->AddEvent(pEvt);
                    }


EventFromItemAtPoint() is mine.

Now the user has selected an event and hit the ENTER key. I trap the message, and want to fight my way back to some custom properties I have stored with that event. The problem is retrieving the pointer for the event that the user has selected.

I tried getting the active view, then a list of CXTPCalendarViewEvents, then one event. But the trail goes cold because I am looking at "view" events, not just events. I may not even be looking in the right place.

Where can I find that lost event? I don't store IDs when I insert.

Eric