# requestModes The set of request modes the receiver’s receive port is registered for with its `NSRunLoop` object. ``` @property (copy, readonly) NSArray * requestModes; ``` ## Discussion An array of `NSString` objects that represents the set of request modes the receiver’s receive port is registered for with its [`RunLoop`](/documentation/Foundation/RunLoop) object. ## See Also [`func add(Port, forMode: RunLoop.Mode)`](/documentation/Foundation/RunLoop/add(_:forMode:)-6z982) Adds a port as an input source to the specified mode of the run loop. --- 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)