if (!(hWnd=CreateWindowEx(dwExStyle,"OpenGL",title,dwStyle |WS_CLIPSIBLINGS |WS_CLIPCHILDREN,0, 0,	WindowRect.right-WindowRect.left,	WindowRect.bottom-WindowRect.top,NULL,NULL,hInstance,NULL)))		

if (!CreateGLWindow("NeHe's Textures, Lighting & Keyboard Tutorial",640,480,16,fullscreen))
	{
		return 0;									// Quit If Window Was Not Created
	}

	while(!done)									// Loop That Runs While done=FALSE
	{
      MessageBox(NULL,"this message box never shows.","ERROR",MB_OK | MB_ICONINFORMATION);

		if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))	// Is There A Message Waiting?
		{
			if (msg.message==WM_QUIT)				// Have We Received A Quit Message?
			{
				done=TRUE;							// If So done=TRUE
			}
			else									// If Not, Deal With Window Messages
			{
				TranslateMessage(&msg);				// Translate The Message
				DispatchMessage(&msg);				// Dispatch The Message
			}
		}
		else										// If There Are No Messages
		{
			// Draw The Scene.  Watch For ESC Key And Quit Messages From DrawGLScene()
			if ((active && !DrawGLScene()) || keys[VK_ESCAPE])	// Active?  Was There A Quit Received?
			{
				done=TRUE;							// ESC or DrawGLScene Signalled A Quit
			}
else
{
...
}