This enumeration identifies revertible mark actions.

Values:

IG_ARTX_UNDO_NONE	Corresponds to empty operation. Should not be used.
IG_ARTX_UNDO_MARK_ATTRIBUTES	Specifies whether to record annotation attribute modification to undo base.
IG_ARTX_UNDO_MARK_SELECT	Specifies whether to record annotation selecting operations to undo base.
IG_ARTX_UNDO_MARK_DELETE	Specifies whether to record annotation delete operation to undo base.
IG_ARTX_UNDO_MARK_CREATE	Specifies whether to record annotation creation operation to undo base.
IG_ARTX_UNDO_GROUP_ATTRIBUTES	Specifies whether to record group attribute modification to undo base.
IG_ARTX_UNDO_GROUP_ZORDER	Specifies whether to record group z-order modification to undo base.
IG_ARTX_UNDO_GROUP_DELETE	Specifies whether to record group creation operation to undo base.
IG_ARTX_UNDO_GROUP_CREATE	Specifies whether to record group delete operation to undo base.