NSAccessibilityOutline
A role-based protocol that declares the minimum interface necessary for an accessibility element to act as an outline view.
Declaration
protocol NSAccessibilityOutline : NSAccessibilityTableOverview
Use this protocol when you want a user interface element to behave like an outline—a view that uses a row-and-column format to display hierarchical data that can expand and collapse—in the accessibility hierarchy.
You can further enhance the adopting element by implementing any of the information properties or action methods that the NSAccessibilityProtocol protocol declares.
Although the NSAccessibilityOutline protocol doesn’t declare any methods, it does conform to the NSAccessibilityTable protocol. You may need to explicitly implement methods from any of the protocols that NSAccessibilityOutline conforms to.