AFFICHAGE D'UNE IMAGE JPG AVEC DIRECT3D MOBILE 5.0

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Drawing;
using Microsoft.WindowsMobile.DirectX;
using Microsoft.WindowsMobile.DirectX.Direct3D;
using System.Reflection;

namespace DarkDominion
{
    class GraphicEngine : System.Windows.Forms.Form
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [MTAThread]
        static void Main()
        {
            GraphicEngine fenetre = new GraphicEngine();
            fenetre.InitializeGraphics();
            fenetre.Show();
            while (fenetre.Created)
            {
                fenetre.Render();
                Application.DoEvents();
            }
            fenetre.DisposeGraphics();
        }


        public Device device;
        public bool Created;
        public Texture texture;
        public VertexBuffer vertices;
        public VertexBuffer vertices2;

        protected bool InitializeGraphics()
        {
            Created = true;
            PresentParameters pres = new PresentParameters();
			// Plein ecran, dans le cas ou vous ne voulez pas du plein ecran, retirer les affectations
			// du BackBufferWidth et du BackBufferHeight qui seront correctement geres tout seuls
            pres.Windowed = false;
            pres.BackBufferWidth = this.Width;
            //pres.BackBufferHeight = this.Height;
			// En utilisant la ligne precedente qui semblerait normal, la taille ne sera pas exactement
			// la bonne car il prendra encore en compte la barre du menu demarrer en haut
            pres.BackBufferHeight = this.Width * 4 / 3; // avec cette affectation la taille est la bonne
            pres.SwapEffect = SwapEffect.CopyVSync;
            device = new Device(0, DeviceType.Default, this, CreateFlags.None, pres);

			// Chargement de la texture
            texture = CreateOverlayTexture(device);
			// creation du premier triangle
            vertices = CreateVertexBuffer(device); 
			// creation du second triangle
            vertices2 = CreateVertexBuffer2(device);
            return true;
        }

        protected VertexBuffer CreateVertexBuffer(Device device)
        {
            VertexBuffer buf = new VertexBuffer(typeof(CustomVertex.TransformedTextured), 3, device, 0, CustomVertex.TransformedTextured.Format, Pool.Managed);
            PopulateVertexBuffer(buf);
            return buf;
        }


        protected void PopulateVertexBuffer(VertexBuffer vertices)
        {
            // Notez qu'on utilise TransformedTextured
            CustomVertex.TransformedTextured[] verts =(CustomVertex.TransformedTextured[])vertices.Lock(0, 0);
            int i = 0;
            verts[i++] = new CustomVertex.TransformedTextured(
              0, 0, 0.5F, // position du sommet
              1,                           // rhw (avancé)
              0, 1);                       // coordonnées texture
            verts[i++] = new CustomVertex.TransformedTextured(
              Width, Height, 0.5F,
              1,
              1, 0);
            verts[i++] = new CustomVertex.TransformedTextured(
              0, Height, 0.5F,
              1,
              1, 1);

            vertices.Unlock();
        }

        protected VertexBuffer CreateVertexBuffer2(Device device)
        {
            VertexBuffer buf = new VertexBuffer(typeof(CustomVertex.TransformedTextured), 3, device, 0, CustomVertex.TransformedTextured.Format, Pool.Managed);
            PopulateVertexBuffer2(buf);
            return buf;
        }


        protected void PopulateVertexBuffer2(VertexBuffer vertices)
        {
            CustomVertex.TransformedTextured[] verts = (CustomVertex.TransformedTextured[])vertices.Lock(0, 0);
            int i = 0;
            verts[i++] = new CustomVertex.TransformedTextured(
              0, 0, 0.5F, // position du sommet
              1,                           // rhw (avancé)
              0, 1);                       // coordonnées texture
            verts[i++] = new CustomVertex.TransformedTextured(
              Width, 0, 0.5F,
              1,
              0, 0);
            verts[i++] = new CustomVertex.TransformedTextured(
              Width, Height, 0.5F,
              1,
              1, 0);

            vertices.Unlock();
        }

        
        protected Texture CreateOverlayTexture(Device device)
        {
            Texture t = TextureLoader.FromStream(device, Assembly.GetExecutingAssembly().GetManifestResourceStream("DarkDominion.Photos.HERVE_Production_Logo.jpg"));
            return t;
        }


        protected void Render()
        {
            device.Clear(ClearFlags.Target, Color.Black, 1.0F, 0);
            device.BeginScene();


            // Nouvelle ligne
            device.SetTexture(0, texture);


            //device.VertexFormat = CustomVertex.TransformedTextured.Format;
            device.SetStreamSource(0, vertices, 0);
            device.DrawPrimitives(PrimitiveType.TriangleList, 0, 1);
            device.SetStreamSource(0, vertices2, 0);
            device.DrawPrimitives(PrimitiveType.TriangleList, 0, 1);


            device.EndScene();
            device.Present();
        }

        protected void DisposeGraphics()
        {
            device.Dispose();
        }
    }
}