init(dataOfContentType:contentSize:createDataUsing:)
Declaration
convenience init(dataOfContentType contentType: UTType, contentSize: CGSize, createDataUsing closure: @escaping (QLPreviewReply) throws -> Data)convenience init(dataOfContentType contentType: UTType, contentSize: CGSize, createDataUsing closure: @escaping (QLPreviewReply) throws -> Data)