C / C++ / MFC

//this is a struct
   
	WNDCLASSEX windowClass = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L, 
                      GetModuleHandle(NULL), NULL, NULL, NULL, NULL,
                      (LPCWSTR)"Barry's D3D BaseClass", NULL };


	// Register the window class
	
	RegisterClassEx( &windowClass );

	// Create the application's window

	HWND hWnd = CreateWindow( (LPCWSTR)"Barry's D3D BaseClass", (LPCWSTR)"test", 
                              WS_OVERLAPPEDWINDOW, 100, 100, 300, 300,
                              GetDesktopWindow(), NULL, windowClass.hInstance, NULL );

	// Initialize Direct3D


    if( 1 )
    { 
        // Show the window
        ShowWindow( hWnd, SW_SHOWDEFAULT );
        UpdateWindow( hWnd );

		MSG mssg;

		PeekMessage( &mssg, NULL, 0, 0, PM_NOREMOVE);
		// run till completed
		while (mssg.message!=WM_QUIT) 
		{
			// is there a message to process?
			if (PeekMessage( &mssg, NULL, 0, 0, PM_REMOVE))
			{
				// dispatch the message
				TranslateMessage(&mssg);
				DispatchMessage(&mssg);
			} 
			else 
			{
	           	//No message to process?
				// Then do your game stuff here
    			 //Render();
     		}
		}

	}

    UnregisterClass( (LPCWSTR)"Barry's D3D BaseClass", windowClass.hInstance );