Trap reply event

[SuperSlueth]

I'm looking for a way to trap the reply event in VBA

Waht i would like if possible

If reply_event then 'if the event is a reply event
run code A
Else ' run code for all other events
run code B
End If

I need to put this code in an already running sub

Many thanks in advance

 

[SuperSlueth]

I'm trying to find a way to trigger a macro on mail open only,

I don't want the macro to run on "reply", or forward events.

Can anyone suggest a way of testing for these action.