Re: [RP] ratpoison configuration howto updated

[Jonathan Walther]

On Sun, Apr 10, 2005 at 03:37:44PM -0400, Shawn Betts wrote:
> Jonathan Walther <address@hidden> writes:
>
> > Perhaps this is a ratpoison bug?  Is ratpoison assuming that a keysym
> > will only be bound to ONE key, so not detecting when I hit keycode
> > 111, because it things "Print" only applies to keycode 92?
>
> The problem is in input.c:keysym_to_keycode_mod().
>
> It uses the X call XKeysymToKeycode, which takes a keysym and returns a
> keycode. The problem is multiple keycodes can map to the same keysym,
> which is what you've done. I don't know how to request all keycodes
> that a keysym is bound to. If that can be figured out, when the
> function could return a list of keycodes.

There is no function that returns all the keycodes that map to a
particular keysym.  So we'd have to roll our own.  We need to do this
once at startup, and then whenever the MappingNotify event happens.
The function XGetKeyboardMapping() returns all the info needed to
construct an internal table of keycodes and keysym mappings.
    (info courtesy of Josh Triplett)

Ugly, yes.  But no other way to do it in X.  There are two different
keycodes which are standard for mapping the Print keysym, so Debian, and
possibly other distros, by default maps the Print keysym to both of
them.
    (info courtesy of Trent Buck)

Jonathan

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