The closing is intercepted in
PasteUpMorph>>windowEvent:
from where this is called
WorldState>>quitSession
| save |
save := self confirm: 'Save changes before quitting?' translated orCancel: [ ^ self ].
save��
ifTrue: [Smalltalk snapshot: true andQuit: true]��
ifFalse: [Smalltalk snapshot: false andQuit: true]
So you can change the method for example to
WorldState>>quitSession
Smalltalk snapshot: true andQuit: true
(or snapshot: false if you don't want to save)
Or you can close it by clicking on world menu and selecting "Save and quit".
Peter