Flags indicating what changed. If the mcfcmAppearanceOnly bit is set in the ChangeFlags argument, then the change affects only the display of the feature(s), not their contents.
FeatureAffected
A Long value.
The feature index of the feature affected by the change or -1 if more than one or all features are affected. The value may be -1 for some changes even if the McFeatures object only holds one feature.
set if the change was caused by a user creating or editing a linked McGraphObj
Remarks
For every event, the ChangeMade event is always fired and then one of the other, more descriptive events is fired. Clients will usually either monitor just the ChangeMade event or just one or two of the others. If all you are interested in is has the object changed then just monitor the ChangeMade event.