Cocoa equivalent of diskEvt/kEventClassVolume?

We have a drop-down menu of volumes in our UI, and I'd like to update it when a new disk is mounted. In the Classic days, this would involve watching for a diskEvt event. In Carbon, I think this was kEventClassVolume. What's the Cocoa equivalent?

(A pointer into Apple's documentation on this would satisfy the question. I've been unable to find anything!)


NSWorkspace posts NSWorkspaceDidMountNotification and friends on its notification center.

Disk Arbitration is responsible for those notifications. It's not written in Cocoa.

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