e = XGetWindowProperty(X11->display, event->xproperty.window, ATOM(_NET_WM_STATE), 0, 1024,
                                   False, XA_ATOM, &ret, &format, &nitems, &after, &data);

            if (e == Success && ret == XA_ATOM && format == 32 && nitems > 0) {
                Atom *states = (Atom *) data;

                unsigned long i;
                for (i = 0; i < nitems; i++) {
                    if (states[i] == ATOM(_NET_WM_STATE_MAXIMIZED_VERT)
                        || states[i] == ATOM(_NET_WM_STATE_MAXIMIZED_HORZ))
                        max = true;
                    else if (states[i] == ATOM(_NET_WM_STATE_FULLSCREEN))
                        full = true;
                }
            }