Contents

NSKeyValueObservingOptions

The values that can be returned in a change dictionary.

Declaration

struct NSKeyValueObservingOptions

Overview

These constants are passed to addObserver(_:forKeyPath:options:context:) and determine the values that are returned as part of the change dictionary passed to an observeValue(forKeyPath:of:change:context:). You can pass 0 if you require no change dictionary values.

Topics

Constants

Initializers

See Also

Enumerations