MainWindow.xaml.cs

using SharpDX;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
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;

namespace HelloWPF {
    /// <summary>
    /// Logique d'interaction pour MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window {
        private AppWPF app;

        public MainWindow() {
            InitializeComponent();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e) {
            DxImage.SetPixelSize(1280, 720);
            DxImage.WindowOwner = (new System.Windows.Interop.WindowInteropHelper(this)).Handle;
            DxImage.OnRender += OnDxImageRender;
            CompositionTarget.Rendering += OnCompositionTargetRendering;

            app = new AppWPF();
            app.Initialize(1280, 720, DxImage.WindowOwner);
        }

        private void OnCompositionTargetRendering(object sender, EventArgs e) {
            DxImage.RequestRender();
        }

        private void OnDxImageRender(IntPtr surface, bool isNewSurface) {
            app.Update();
            app.Render();

            app.UpdateD3D11Image(surface);
        }
    }
}