cs-tutorial-2-capture with depth aligned to color

Window.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;

namespace Intel.RealSense
{
    /// <summary>
    /// Interaction logic for Window.xaml
    /// </summary>
    public partial class CaptureWindow : Window
    {
        private Pipeline  pipeline;
        private Colorizer colorizer;
        private Align aligner;
        private CancellationTokenSource tokenSource = new CancellationTokenSource();

        static Action<VideoFrame> UpdateImage(Image img)
        {
            var wbmp = img.Source as WriteableBitmap;
            return new Action<VideoFrame>(frame =>
            {
                using (frame)
                {
                    var rect = new Int32Rect(0, 0, frame.Width, frame.Height);
                    wbmp.WritePixels(rect, frame.Data, frame.Stride * frame.Height, frame.Stride);
                }
            });
        }

        public CaptureWindow()
        {
            InitializeComponent();

            try
            {
                Action<VideoFrame> updateDepth;
                Action<VideoFrame> updateColor;

                // The colorizer processing block will be used to visualize the depth frames.
                colorizer = new Colorizer();
                aligner = new Align(Stream.Color);

                // Create and config the pipeline to strem color and depth frames.
                pipeline = new Pipeline();

                var cfg = new Config();
                cfg.EnableStream(Stream.Depth, 640, 480);
                cfg.EnableStream(Stream.Color, Format.Rgb8);

                var pp = pipeline.Start(cfg);

                SetupWindow(pp, out updateDepth, out updateColor);

                Task.Factory.StartNew(() =>
                {
                    while (!tokenSource.Token.IsCancellationRequested)
                    {
                        // We wait for the next available FrameSet and using it as a releaser object that would track
                        // all newly allocated .NET frames, and ensure deterministic finalization
                        // at the end of scope. 
                        using (var original = pipeline.WaitForFrames())
                        using (var frames = aligner.Process(original))
                        {
                            var colorFrame = frames.ColorFrame.DisposeWith(frames);
                            var depthFrame = frames.DepthFrame.DisposeWith(frames);

                            // We colorize the depth frame for visualization purposes, .
                            var colorizedDepth = colorizer.Process(depthFrame).DisposeWith(frames);

                            // Render the frames.
                            Dispatcher.Invoke(DispatcherPriority.Render, updateDepth, colorizedDepth);
                            Dispatcher.Invoke(DispatcherPriority.Render, updateColor, colorFrame);
                        }
                    }
                }, tokenSource.Token);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
                Application.Current.Shutdown();
            }
        }

        private void control_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            tokenSource.Cancel();
        }

        private void SetupWindow(PipelineProfile pipelineProfile, out Action<VideoFrame> depth, out Action<VideoFrame> color)
        {
            using (var p = pipelineProfile.GetStream(Stream.Depth) as VideoStreamProfile)
                imgDepth.Source = new WriteableBitmap(p.Width, p.Height, 96d, 96d, PixelFormats.Rgb24, null);
            depth = UpdateImage(imgDepth);

            using (var p = pipelineProfile.GetStream(Stream.Color) as VideoStreamProfile)
                imgColor.Source = new WriteableBitmap(p.Width, p.Height, 96d, 96d, PixelFormats.Rgb24, null);
            color = UpdateImage(imgColor);
        }
    }
}