imho if you had that callback, it wouldn't be very solid if you implemented it only when the property page is up. I think you'll see the deletion in the siOnObjectRemoved event
On Fri, Mar 22, 2013 at 6:01 AM, Eugen Sares <[email protected]> wrote: > Hi, > got a custom operator that has some object(s) connected via input port > group. > How does the operator's PPG get notified when input objects get deleted? I > like to take appropriate steps then like freezing the operator. > Is there "NumInstancesInGroup_OnChanged()" or something? Wait, can't be, > since input ports are not parameters. > Cheers, > Eugen

