مشكلة في كود directx

بسم الله الرحمن الرحيم عندي مشكلة لم أكتشفها في كود DIRECTX

#include <windows.h>
#include <d3d9.h>
#include <d3dx9.h>


#pragma comment (lib, "d3d9.lib")
#pragma comment (lib, "d3dx9.lib")


BOOL SetupWCE(HINSTANCE hInstance,int nShowCmd);
LRESULT CALLBACK WndProc(HWND hwnd,int message,WPARAM wParam,LPARAM lParam);
BOOL LoopMessage();
void initD3D(HWND hwnd);
BOOL Render(float timeDalta);
void Cleanup();
void Setup();

IDirect3D9* d3d9;
IDirect3DDevice9* Device = 0;
IDirect3DVertexBuffer9* VB = 0;
D3DXMATRIX p;

#define DEMOFVF   ( D3DFVF_XYZ | D3DFVF_DIFFUSE )

struct Vertex
{
	public:
		Vertex(){x = 0;y = 0;z = 0;}
		Vertex(float _x,float _y,float _z,D3DCOLOR _color)
		{x = _x;y = _y;z = _z;color = _color;}
	float x,y,z;
	D3DCOLOR color;
};


int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
{
	WNDCLASSEX wc;

	wc.cbSize = sizeof(WNDCLASSEX);
	wc.cbClsExtra = 0;
	wc.style = 0;
	wc.lpszClassName = "main";
	wc.lpszMenuName = NULL;
	wc.lpfnWndProc = (WNDPROC)WndProc;
	wc.hInstance = hInstance;
	wc.hIconSm = LoadIcon(NULL,IDI_APPLICATION);
	wc.hIcon = LoadIcon(NULL,IDI_APPLICATION);
	wc.hCursor = LoadCursor(NULL,IDC_ARROW);
	wc.hbrBackground = (HBRUSH)(12);
	wc.cbWndExtra = 0;

	RegisterClassEx(&wc);

	HWND hwnd = CreateWindowEx(WS_EX_OVERLAPPEDWINDOW,"main","DirectX",WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,250,300,NULL,NULL,hInstance,NULL);

	ShowWindow(hwnd,nShowCmd);
	UpdateWindow(hwnd);

	initD3D(hwnd);

	MSG msg;
	ZeroMemory(&msg,sizeof(MSG));

	while(msg.message != WM_QUIT)
	{

		if(PeekMessage(&msg,NULL,0,0,PM_REMOVE))
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
		else
		{
			int b= 0;
			Render(b);
		}
	}
	Cleanup();
	return msg.wParam;

}
void initD3D(HWND hwnd)
{
    d3d9 = Direct3DCreate9(D3D_SDK_VERSION);

    D3DPRESENT_PARAMETERS d3dpp;

    ZeroMemory(&d3dpp, sizeof(d3dpp));
    d3dpp.Windowed = TRUE;
    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
    d3dpp.hDeviceWindow = hwnd;
    d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8;
    d3dpp.BackBufferWidth = 480;
    d3dpp.BackBufferHeight = 640;
    d3dpp.EnableAutoDepthStencil = TRUE;    
    d3dpp.AutoDepthStencilFormat = D3DFMT_D16;    


    d3d9->CreateDevice(D3DADAPTER_DEFAULT,
                      D3DDEVTYPE_HAL,
                      hwnd,
                      D3DCREATE_SOFTWARE_VERTEXPROCESSING,
                      &d3dpp,
                      &Device);
	Setup();
}
BOOL Render(float timeDalta)
{

		Device->Clear(0,0,D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER,0xffffffff,0.1f,0);
		////


		D3DXMatrixTranslation(&p,0.0f,0.0f,0.0f);
		Device->SetTransform(D3DTS_WORLD,&p);

		Device->BeginScene();

		Device->SetStreamSource(0,VB,0,sizeof(Vertex));
		Device->SetFVF(DEMOFVF);

		Device->DrawPrimitive( D3DPT_TRIANGLELIST,0,1);



		Device->EndScene();

		Device->Present(0,0,0,0);
	return TRUE;
}


LRESULT CALLBACK WndProc(HWND hwnd,int message,WPARAM wParam,LPARAM lParam)
{
	switch(message)
	{
		case WM_CLOSE:
			DestroyWindow(hwnd);
			break;
		case WM_DESTROY:
			PostQuitMessage(0);
			break;
		default:
			return DefWindowProc(hwnd,message,wParam,lParam);
			break;
	}
	return 0;
}
void Cleanup()
{
	Device->Release();
}
void Setup()
{
	Device->CreateVertexBuffer(sizeof(Vertex) * 3,D3DUSAGE_WRITEONLY,DEMOFVF,D3DPOOL_MANAGED,&VB,0);
	Vertex* vertex = new Vertex[3];

	VOID* pVoid; 

	VB->Lock(0,0,(void**)&pVoid,0);

	vertex[0] = Vertex(0,0,0,D3DCOLOR_XRGB(255,0,0));
	vertex[1] =	Vertex(10,0,0,D3DCOLOR_XRGB(0,255,0));
	vertex[2] = Vertex(0,10,0,D3DCOLOR_XRGB(0,0,255));

    memcpy(pVoid,vertex, sizeof(Vertex)*3);


	VB->Unlock();

	D3DXVECTOR3 position(0,0,10);
	D3DXVECTOR3 look(0,0,0);
	D3DXVECTOR3 up(0.0f,1.0f,0.0f);
	D3DXMATRIX v;
	D3DXMatrixLookAtLH(&v,&position,&look,&up);

	Device->SetTransform(D3DTS_VIEW,&v);

	D3DXMATRIX proj;
	D3DXMatrixPerspectiveFovLH(&proj,D3DX_PI * 0.5,(float)480/(float)640,0.1f,100000.0f);

	Device->SetTransform(D3DTS_PROJECTION,&proj);


	Device->SetRenderState(D3DRS_LIGHTING, FALSE);    
}