Enum CompressionLevel Path C++ Link System.IO.Compression.CompressionLevel, System underlying int32 System Values 3 NameValueHex Optimal00x00Fastest10x01NoCompression20x02 // System.IO.Compression.CompressionLevel, System enum class CompressionLevel : int32 { Optimal = 0, Fastest = 1, NoCompression = 2, };