Paint.PictureIOManager.LoadImageStateData C# (CSharp) Method

        public ImageStateData LoadImageStateData()
        {
            if (!File.Exists(this.filenameResolver.MasterImageInfoFilename))
            {
                throw new FileNotFoundException(String.Format("Image State Data file {0} does not exist", this.filenameResolver.MasterImageInfoFilename));
            }

            var dataList = new List<int>();

            using (var stream = File.OpenRead(this.filenameResolver.MasterImageInfoFilename))
            {
                for (short count = 0; count < 6; count++)
                {
                    dataList.Add(
                        stream.ReadByte() |
                        (stream.ReadByte()) << 8 |
                        (stream.ReadByte()) << 16 |
                        (stream.ReadByte()) << 24
                    );
                }
            }

            return new ImageStateData(
                dataList[0],
                dataList[1],
                dataList[2],
                dataList[3],
                dataList[4],
                dataList[5]);
        }

        /// <summary>
        /// Playback an image.
        /// </summary>
        private void PlaybackImage(Guid pictureId)
        {
            var filenameResolver = this.CreateFilenameResolver(pictureId);
            var pictureIOManager = new PictureIOManager(filenameResolver);
            ImageStateData imageStateData = pictureIOManager.LoadImageStateData();

            this.SetOrientationForImage(imageStateData);

            var canvasPlayback = new CanvasPlayback(filenameResolver.MasterCanvasRecorderFilename(imageStateData.CurrentSavePoint));

            this.SetOrientationForImage(imageStateData);

            // Simply instantiate the class derived from monogame:game and away we go...
            ToolboxLayoutDefinition layoutDefinition =
                imageStateData.Width > imageStateData.Height ?
                    this.toolboxLayoutManager.PlaybackLandscapeToolboxLayout :
                    this.toolboxLayoutManager.PlaybackPortraitToolboxLayout;

            this.playBackApp = new CanvasPlaybackApp(canvasPlayback, imageStateData, layoutDefinition, this.deviceScale);
            this.playBackApp.Exiting += CanvasPlaybackAppExiting;
            this.playBackApp.Run();
        }