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Detecting "window closed" for modal Spec window

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Hi,

is it possible to detect when a modal window was closed in Spec?

I can do the following

window := TextModel new openWithSpec.

window window announcer when: WindowClosed do: [ self inform: 'window closed' ].

But when I make the window modal it is no longer being announced

window := TextModel new openWithSpec.

window modalRelativeTo: self currentWorld.

window window announcer when: WindowClosed do: [ self inform: 'window closed' ].

Is there some other way how I can achieve this?

Thanks,

Peter