XChangeProperty(dpy, menu->win, netatom[NetWMWindowType], XA_ATOM, 32,
PropModeReplace,
(unsigned char *)&netatom[NetWMWindowTypePopupMenu], 1);
XChangeProperty(dpy, menu->win, netatom[NetWMWindowType], XA_ATOM, 32,
PropModeReplace,
(unsigned char *)&netatom[NetWMWindowTypePopupMenu], 1);