Last updated at 4:21 pm UTC on 7 May 2019
WThere is a method #isWorldMorph implemented for Morph objects as
and for PasteUpMorph objects as
^ worldState notNil
This means if a PasteUpMorph object has a WorldState object attached. This means that the PasteUpMorph object is the topmost morph and playing the role of desktop in most cases.