The NSAccessibilityPostNotification function is used to post an accessibility notification, which cannot be posted to the default notification center. The remaining functions are used by the accessibility system in Cocoa to manage what objects are visible to assistive applications.
void NSAccessibilityPostNotification(id element, NSString *notification)
id NSAccessibilityUnignoredAncestor(id element)
NSArray *NSAccessibilityUnignoredChildren(NSArray *originalChildren)
NSArray *NSAccessibilityUnignoredChildrenForOnlyChild(id originalChild)
id NSAccessibilityUnignoredDescendant(id element)