XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
c->isfullscreen = True;
XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
c->isfullscreen = True;