# CGPDFDictionaryGetStream(_:_:_:) Returns whether there is a PDF stream associated with a specified key in a PDF dictionary and, if so, retrieves that stream. ``` func CGPDFDictionaryGetStream(_ dict: CGPDFDictionaryRef, _ key: UnsafePointer, _ value: UnsafeMutablePointer?) -> Bool ``` ## Parameters `dict` A PDF dictionary. If this parameter is not a valid PDF dictionary, the behavior is undefined. `key` The key for the value to be retrieved. `value` On input, a pointer to a PDF stream. If the value associated with the specified key is a PDF stream, then on return contains that stream; otherwise, the value is unspecified. ## Return Value Returns if there is a PDF stream associated with the specified key; otherwise, . ## 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)