# notify_check(_:_:) ``` func notify_check(_ token: Int32, _ check: UnsafeMutablePointer!) -> UInt32 ``` ## Parameters `token` (input) notification token `check` (output) true/false indication ## Return Value Returns status. ## Discussion Check if any notifications have been posted. Output parameter check is set to 0 for false, 1 for true. Returns status. check is set to true the first time notify_check is called for a token. Subsequent calls set check to true when notifications have been posted for the name associated with the notification token. This routine is independent of notify_post(). That is, check will be true if an application calls notify_post() for a name and then calls notify_check() for a token associated with that name. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)