PeekMessage?

So I started DirectX programming, and I've learned to use PeekMessage instead of GetMessage, but for some reason the program keeps running in the background when I close it. I have searched the forums, but I couldn't find a working solution. Here's my code:

Message Loop:

Code:

---

        ZeroMemory ( &Msg, sizeof ( MSG ) );

        while ( Msg.message != WM_QUIT )
        {
                if ( PeekMessage ( &Msg, hWnd, 0, 0, PM_REMOVE ) )
                {
                        TranslateMessage ( &Msg );
                        DispatchMessage  ( &Msg );
                }

                else
                {
                        // Rendering, etc.
                }
        }

---

Window Procedure:

Code:

---

LRESULT CALLBACK WndProc ( HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam )
{
        switch ( Msg )
        {
        case WM_CLOSE:
                DestroyWindow ( hWnd );
                break;

        case WM_DESTROY:
                PostQuitMessage ( WM_QUIT );
                break;

        default:
                return DefWindowProc ( hWnd, Msg, wParam, lParam );
        }

        return 0;
}

---

Thanks.

Why do you use PeekMessage? It's not meant to be used this way. WM_DESTROY posts NULL message to the message queue and GetMessage returns 0 (false) then and the loop breaks. PeekMessage doesn't care about NULL message. You would need to handle NULL messages separately then.

NULL should typically be used for the second argument of PeekMessage or GetMessage. This allows all messages belonging to the thread to be processed.

What on earth is the "NULL message"? There's only WM_QUIT, which is a thread message and thus has a NULL window handle.

Ah, passing NULL fixed it.

Thanks. :)