QuickLookThumbnailing iOS 12.4 to 13.0 API Differences

QLThumbnailErrors.h
QLThumbnailGenerationRequest.h
QLThumbnailGenerator.h
QLThumbnailingBase.h
Added #def QLT_EXPORT
Added #def QLT_WEAK_EXPORT
Added #def QLT_PRIVATE_EXPORT
Added #def QLT_INLINE
Added #def QLT_NOINLINE
Added #def QLT_DEPRECATED
Added #def QLT_FORMAT_ARG
Added #def QLT_LIKELY
Added #def QLT_UNLIKELY
QLThumbnailProvider.h
QLThumbnailReply.h
QLThumbnailRepresentation.h
QLThumbnailRequest.h