willBecomeActiveNotification
Posted immediately before the app becomes active.
Declaration
class let willBecomeActiveNotification: NSNotification.NameDiscussion
The notification object is NSApp. This notification doesn’t contain a userInfo dictionary. The system posts this notification on the main actor.
To observe this notification using Swift concurrency, use NSApplication.WillBecomeActiveMessage.
See Also
Notifications
didBecomeActiveNotificationdidChangeScreenParametersNotificationdidFinishLaunchingNotificationdidHideNotificationdidResignActiveNotificationdidUnhideNotificationdidUpdateNotificationwillFinishLaunchingNotificationwillHideNotificationwillResignActiveNotificationwillTerminateNotificationwillUnhideNotificationwillUpdateNotificationdidFinishRestoringWindowsNotificationdidChangeOcclusionStateNotification