ARUP.IssueTracker.Revit.AddIssueRevit.GetEncodedImageData C# (CSharp) Method

        internal byte[] GetEncodedImageData(ImageSource image, string preferredFormat)
        {
            try
            {
                byte[] result = null;
                BitmapEncoder encoder = null;
                switch (preferredFormat.ToLower())
                {
                    case ".jpg":
                    case ".jpeg":
                        encoder = new JpegBitmapEncoder();
                        break;
                    case ".bmp":
                        encoder = new BmpBitmapEncoder();
                        break;
                    case ".png":
                        encoder = new PngBitmapEncoder();
                        break;
                    case ".tif":
                    case ".tiff":
                        encoder = new TiffBitmapEncoder();
                        break;
                    case ".gif":
                        encoder = new GifBitmapEncoder();
                        break;
                    case ".wmp":
                        encoder = new WmpBitmapEncoder();
                        break;
                }
                if (image is BitmapSource)
                {
                    MemoryStream stream = new MemoryStream();
                    encoder.Frames.Add(BitmapFrame.Create(image as BitmapSource));
                    encoder.Save(stream);
                    stream.Seek(0, SeekOrigin.Begin);
                    result = new byte[stream.Length];
                    BinaryReader br = new BinaryReader(stream);
                    br.Read(result, 0, (int)stream.Length);
                    br.Close();
                    stream.Close();
                }
                return result;
            }
            catch (System.Exception ex1)
            {
                TaskDialog.Show("Error!", "exception: " + ex1);
            }
            return null;
        }