Instance Property


A Boolean value that indicates whether the recording of undo operations is enabled.


var isUndoRegistrationEnabled: Bool { get }


true if registration is enabled; otherwise, false.

The default is true.

See Also

Enabling and Disabling Undo

func disableUndoRegistration()

Disables the recording of undo operations, whether by registerUndo(withTarget:selector:object:) or by invocation-based undo.

func enableUndoRegistration()

Enables the recording of undo operations.