A legacy, informal protocol that that is not recommended for active use.
The NSAccessibility informal protocol defines an old, key-based API. For the most part, the use of this API is discouraged. Use the new, method-based API instead. However, there are a few methods and properties that are still relevant. You can combine the
accessibility method and the
accessibility properties with the new
NSAccessibility protocol. For more information on the new, method-based API see Accessibility Programming Guide for OS X or