Function CMTextFormatDescriptionGetDisplayFlags 

pub unsafe extern "C-unwind" fn CMTextFormatDescriptionGetDisplayFlags(
    desc: &CMFormatDescription,
    display_flags_out: NonNull<CMTextDisplayFlags>,
) -> i32

Available on crate feature CMFormatDescription only.

Returns the displayFlags.

These are the flags that control how the text appears. The function can return kCMFormatDescriptionError_ValueNotAvailable for formats without display flags.

Safety

display_flags_out must be a valid pointer.