# ODSessionCopyNodeNames(_:_:_:) Returns the names of nodes registered in a given session. ``` func ODSessionCopyNodeNames(_ allocator: CFAllocator!, _ session: ODSessionRef!, _ error: UnsafeMutablePointer?>!) -> Unmanaged! ``` ## Parameters `allocator` The memory allocator to use. If `NULL`, the default allocator is used. `session` The session. `error` An error reference for error details. Can be `NULL`. ## Return Value An array of valid node names in the given session. ## Discussion --- 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)