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# NSApplicationDidFinishLaunching User Info Keys

The keys you use to access values in the launch options dictionary that the system passes to your app at initialization.

## Topics

### Keys

[`class let launchIsDefaultUserInfoKey: String`](/documentation/AppKit/NSApplication/launchIsDefaultUserInfoKey)

A Boolean value that indicates if the app launch is a default launch.

[`class let launchUserNotificationUserInfoKey: String`](/documentation/AppKit/NSApplication/launchUserNotificationUserInfoKey)

A key that indicates your app was launched because a user activated a notification in the Notification Center.

[`extern NSString * const NSApplicationLaunchRemoteNotificationKey;`](/documentation/AppKit/NSApplicationLaunchRemoteNotificationKey)

Use this key to access the JSON push-notification payload from the user info dictionary of the `didFinishLaunchingNotification` notification.


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