void handleEnterNotifyEvent(XCrossingEvent e, XWindow window, XWindow root, XWindow subwindow) { }
void handleClientEnterEvent(XCrossingEvent e, Client c) { }
void handleEnterNotifyEvent(XCrossingEvent e, XWindow window, XWindow root, XWindow subwindow) { }
void handleClientEnterEvent(XCrossingEvent e, Client c) { }