MACaptionAppearance Class that contains static methods and fields for accessing and controlling information about the appearance and language of accessibility features on the device.
MACaptionAppearanceBehavior Enumerates values that indicate whether to override a setting with the value that is supplied by the media, if present.
MACaptionAppearanceDisplayType Enumerates values that indicate whether to display captions only for translation, always, or only if an audio track language differs from the system.
MACaptionAppearanceDomain Enumerates values that indicate whether to use the system's or the user's caption appearance settings.
MACaptionAppearanceFontStyle Enumerated values that control the font for the captions.
MACaptionAppearanceTextEdgeStyle Enumerates values that indicate whether to raise caption text, use drop shadows on them, or etc.