POLYGONES DIVERSES SANS GLUT[DEV C++...]

#include <windows.h>
#include <gl/gl.h>
#include <gl/glu.h>

WNDCLASS wc;
MSG msg;
HWND hWnd;
HDC	DC;
HGLRC RC;

void RePaint ()
{
	glClear (GL_COLOR_BUFFER_BIT);
	glMatrixMode (GL_MODELVIEW);
	glLoadIdentity ();

    gluLookAt (0,0,-10,0,0,0,0,1,0);

    glBegin (GL_POLYGON);
            glColor3d (0,0,1);
            glVertex2i (-5,-2);
            glVertex2i (-5,0);
            glVertex2i (-4,1);
            glVertex2i (-3,0);
            glVertex2i (-3,-2);
            glVertex2i (-4,-3);
    glEnd ();

    glBegin (GL_QUADS);
            glColor3d (1,1,0);
            glVertex2i (2,2);
            glVertex2i (2,4);
            glVertex2i (4,4);
            glVertex2i (4,2);
    glEnd ();

    glBegin (GL_TRIANGLES);
            glColor3d (0,1,0);
            glVertex2i (3,-4);
            glVertex2i (1,-2);
            glVertex2i (1,-4);
    glEnd ();

    glBegin (GL_LINES);
            glColor3d (1,0,1);
            glVertex2i (1,1);
            glVertex2i (-1,-1);
    glEnd ();

	SwapBuffers (DC);
}

void InitPixelFormat (HDC hDC)
{
      PIXELFORMATDESCRIPTOR pfd =
      {
           sizeof (PIXELFORMATDESCRIPTOR),
           1,
           PFD_SUPPORT_OPENGL | PFD_TYPE_RGBA | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER,
           16,
           0, 0, 0, 0, 0, 0, 0, 0,	0, 0, 0, 0, 0,
           16,
           0, 0, 0, 0, 0, 0, 0
      };

      SetPixelFormat (hDC, ChoosePixelFormat (hDC, &pfd), &pfd);
}

LRESULT CALLBACK WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch (uMsg)
	{
	case WM_CREATE:
		DC=GetDC (hwnd);
        InitPixelFormat (DC);
        RC = wglCreateContext (DC);
        wglMakeCurrent (DC, RC);
		break;
	case WM_CLOSE:
        wglMakeCurrent (NULL, NULL);
        wglDeleteContext (RC);
        ReleaseDC (hwnd,DC);
		PostQuitMessage (0);
		break;
    case WM_SIZE:
    	glViewport (0,0,LOWORD (lParam),HIWORD (lParam));
    	glMatrixMode (GL_PROJECTION);
    	glLoadIdentity ();
    	gluPerspective (45,(float)(LOWORD(lParam))/(float)(HIWORD(lParam)),1,100);
    	break;
    case WM_PAINT:
    	RePaint ();
    	break;
	default:
		return DefWindowProc (hwnd,uMsg,wParam,lParam);
		break;
	}
	return 0;
}

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int CmdShow)
{
	wc.style = CS_OWNDC;
	wc.lpfnWndProc = WindowProc;
	wc.cbClsExtra = 0;
	wc.cbWndExtra = 0;
	wc.hInstance = hInstance;
	wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
	wc.hCursor = LoadCursor(NULL, IDC_ARROW);
	wc.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
	wc.lpszMenuName = NULL;
	wc.lpszClassName = "OGL";
	
	RegisterClass(&wc);

	hWnd = CreateWindow
	("OGL", "Fenetre OpenGL",
	WS_CAPTION | WS_POPUPWINDOW | WS_VISIBLE,
	0, 0, 640, 480, NULL, NULL, hInstance, NULL
	);

	while (GetMessage(&msg, NULL, 0, 0)) {
		TranslateMessage(&msg);
		DispatchMessage(&msg);
	}

	return 0;
}