Returns the radius of the caption window’s corners.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
A pointer to memory. On return, this memory holds the caption appearance behavior for this preference setting. For possible values see
NULLwhen you do not need the behavior setting.
The system setting for the caption window’s corner radius.
The rounded corners of the caption window are not customizable within the Accessibility preferences and do not change based on text size.