NSPowerOffEventType Specifies that the user is turning off the computer. Declarationstatic const NSEventSubtype NSPowerOffEventType; See AlsoDeprecatedNSAWTEventTypeNSApplicationActivatedEventTypeNSApplicationDeactivatedEventTypeNSMouseEventSubtypeNSScreenChangedEventTypeNSTabletPointEventSubtypeNSTabletProximityEventSubtypeNSTouchEventSubtypeNSWindowExposedEventTypeNSWindowMovedEventType