You can also override #defaultAction on Exception, and install a custom UIManager subclass implementing unhandledErrorDefaultAction: (sent by UnhandledError #defaultAction, receives the error as argument).
Would be nice(r) if UIManager had a defaultUnhandledErrorActionBlock: setter, but it's not too bothersome creating a subclass. Cheers, Henry -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html