Does the XKeySym definitions have a range setup for use by the application? Can I f.ex. asume that 0xaa?? if free for use by LyX? (I have a secret plan to use XRebindKeysym to bind mouse events to keysyms and pass them as regular keysyms to to processKeysym in LyXFunc.) _or_ should I pick some keysyms in keysymdefs that LyX will never use anyway? Lgb