System.IO.Compression.Inflater.InflateInit C# (CSharp) Méthode

        private void InflateInit(int windowBits)
        {
            ZLibNative.ErrorCode error;
            try
            {
                error = ZLibNative.CreateZLibStreamForInflate(out _zlibStream, windowBits);
            }
            catch (Exception exception) // could not load the ZLib dll
            {
                throw new ZLibException(SR.ZLibErrorDLLLoadError, exception);
            }

            switch (error)
            {
                case ZLibNative.ErrorCode.Ok:           // Successful initialization
                    return;

                case ZLibNative.ErrorCode.MemError:     // Not enough memory
                    throw new ZLibException(SR.ZLibErrorNotEnoughMemory, "inflateInit2_", (int)error, _zlibStream.GetErrorMessage());

                case ZLibNative.ErrorCode.VersionError: //zlib library is incompatible with the version assumed
                    throw new ZLibException(SR.ZLibErrorVersionMismatch, "inflateInit2_", (int)error, _zlibStream.GetErrorMessage());

                case ZLibNative.ErrorCode.StreamError:  // Parameters are invalid
                    throw new ZLibException(SR.ZLibErrorIncorrectInitParameters, "inflateInit2_", (int)error, _zlibStream.GetErrorMessage());

                default:
                    throw new ZLibException(SR.ZLibErrorUnexpected, "inflateInit2_", (int)error, _zlibStream.GetErrorMessage());
            }
        }