void IntGL(HDC &hDC, HGLRC &hRC, HWND hWnd, HINSTANCE hInstance)
{

	if(prev) GetClientRect(hWnd, &rect);
	else
	{
		SetRect(&rect, 0, 0, GetSystemMetrics(SM_CXSCREEN),
		GetSystemMetrics(SM_CYSCREEN));
	}


	WNDCLASSEX wc;
	hInstance			= GetModuleHandle(NULL);
	ZeroMemory			(&wc, sizeof (WNDCLASSEX));
	wc.cbSize			= sizeof (WNDCLASSEX);
	wc.style		    = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
	wc.lpfnWndProc		= (WNDPROC) WndProc;
	wc.cbClsExtra		= 0;
	wc.cbWndExtra		= 0;
	wc.hInstance		= hInstance;
	wc.hIcon			= LoadIcon(hInstance, (LPCTSTR)IDI_ICON1);
	wc.hCursor			= LoadCursor(NULL, NULL);
	wc.hbrBackground	= NULL;
	wc.lpszMenuName		= NULL;
	wc.lpszClassName	= "window";

	if(!RegisterClassEx(&wc))
	{
		MessageBox(NULL, "Window Registration Failed!", "Error!",
		MB_ICONEXCLAMATION | MB_OK);
	}

	if(!prev)
	{
		DEVMODE dmScreenSettings;
		memset(&dmScreenSettings,0,sizeof(dmScreenSettings));
		dmScreenSettings.dmSize=sizeof(dmScreenSettings);
		dmScreenSettings.dmPelsWidth	= rect.right;
		dmScreenSettings.dmPelsHeight	= rect.bottom;
		dmScreenSettings.dmBitsPerPel	= 16;
		dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;

		if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)
		{
			if (MessageBox(NULL, "Unable to render!","ERROR 1", MB_OK))
			{
				end=TRUE;
			}
		}
	}

	hWnd = CreateWindowEx(  WS_EX_APPWINDOW,
							"window",
							"Fall!",
							style,
							0,
							0,
							rect.right,
							rect.bottom,
							NULL,
							NULL,
							hInstance,
							NULL);
	

	if(hWnd == NULL)
	{
		MessageBox(NULL, "Window Creation Failed!", "Error!",
		MB_ICONEXCLAMATION | MB_OK);
	}

	{

		static	PIXELFORMATDESCRIPTOR pfd=
		{
			sizeof(PIXELFORMATDESCRIPTOR),
			1,
			PFD_DRAW_TO_WINDOW |
			PFD_SUPPORT_OPENGL |
			PFD_DOUBLEBUFFER,
			PFD_TYPE_RGBA,
			16,
			0, 0, 0, 0, 0, 0,
			0,
			0,
			0,
			0, 0, 0, 0,
			16,
			0,
			0,
			PFD_MAIN_PLANE,
			0,
			0, 0, 0
		};

		glViewport(0,0,rect.left,rect.top);

		hDC=GetDC(hWnd);
		int PixelFormat=ChoosePixelFormat(hDC,&pfd);

		SetPixelFormat(hDC,PixelFormat,&pfd);

		hRC=wglCreateContext(hDC);
		wglMakeCurrent(hDC,hRC);

		glMatrixMode(GL_PROJECTION);
		glLoadIdentity();

		perspectiveGL(45.0f,(GLfloat)rect.right/(GLfloat)rect.bottom,0.1f,100.0f);

		glMatrixMode(GL_MODELVIEW);
		glLoadIdentity();

		glEnable(GL_TEXTURE_2D);
		glShadeModel(GL_SMOOTH);
		glClearColor(0.0f, 0.0f, 0.0f, 0.5f);
		glClearDepth(1.0f);
		glEnable(GL_DEPTH_TEST);
		glDepthFunc(GL_LEQUAL);
		glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
		glBlendFunc(GL_SRC_ALPHA,GL_ONE);
		glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
		glLightfv(GL_LIGHT0, GL_POSITION, position);
		glEnable(GL_LIGHT0);
		glColorMaterial(GL_FRONT, GL_DIFFUSE);
		glEnable(GL_COLOR_MATERIAL);
		glEnable(GL_LIGHTING);

		inttex();

		loadDisplayLists(load3DS((LPCTSTR)IDR_OBJECT1));

		if(start) SetCursor(NULL);
		ShowWindow(hWnd,SW_SHOW);
		SetForegroundWindow(hWnd);
		SetFocus(hWnd);

	}
	
}