Capturing events with IDispEventSimpleImpl

Hello, I want to creating an addin that captures when a {contact, calendar,
task, note} is {created, edited, removed}. I have the following code, to make
it shorter I removed all the code but the related to contact, since all types
will be the same I guess.

AutoSync.h
class ATL_NO_VTABLE AutoSync :
public wxPanel,
public IDispEventSimpleImpl<1, AutoSync, &__uuidof(Outlook::ItemsEvents)>,
public IDispEventSimpleImpl<2, AutoSync, &__uuidof(Outlook::ItemsEvents)>,
public...

Capturing events with IDispEventSimpleImpl