Spell Checker

The NSSpellChecker class gives any application an interface to the Cocoa spell-checking service. To handle all its spell checking, an application needs only one instance of NSSpellChecker. It provides a panel in which the user can specify decisions about words that are suspect.

The spell checker facility also provides lists of potential word completions culled from its spelling dictionary for the text-completion system in OS X version 10.3 and later.