Choose key symbols. There are quite a range of these that are not used by default, so many are free. You can find the list in / usr/ X11R6/ include/ X11/ keysymdef. h (or its equivalent on your system).
Escolliu els símbols de tecla. Hi ha un interval d' aquests que per omissió no s' usen, i per tant, estan lliures. Podeu trobar la llista en / usr/ X11R6/ include/ X11/ keysymdef. h (o el seu equivalent en el vostre sistema).