# xpc_dictionary_dup_fd(_:_:) Creates a file descriptor from a dictionary directly. ``` func xpc_dictionary_dup_fd(_ xdict: xpc_object_t, _ key: UnsafePointer) -> Int32 ``` ## Parameters `xdict` The dictionary object which is to be examined. `key` The key whose value is to be obtained. ## Return Value A new file descriptor created from the value for the specified key. You are responsible for closing this descriptor. -1 if the value for the specified key is not a file descriptor value or if there is no value for the specified key. ## 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)