ConsoleApplication.UnhandledException
From Xojo Documentation
Event
ConsoleApplication.UnhandledException(error as RuntimeException) As Boolean
Supported for all project types and targets.
Supported for all project types and targets.
Occurs when a RuntimeException occurs that is not otherwise handled.
Notes
This event allows you to do any last-minute clean-up, but the application does not resume after this event. The application terminates after this event.
The UnhandledException event returns a Boolean. By default, the application writes an error message to stderr. Return True to suppress output to stderr.