[xmonad] New User Impressions

[Spencer Janssen]

On Fri, Jan 30, 2009 at 06:06:18PM +0300, Khudyakov Alexey wrote:
> On Friday 30 January 2009 04:13:44 Adam Vogt wrote:
> > If you have a recent haskell X11 binding (>=1.4.4 I think) that had access
> > to those headers when compiled, then you will have the module;
> >
> > Graphics.X11.ExtraTypes.XF86
> >
> > which exports functions like xF86XK_AudioLowerVolume, which should be the
> > same as those raw numbers.
> >
> Thank you for hint. I've seen this module once, but could not found it again. 
> 
> It appears since 1.4.3. Since xmonad-contib depends on X11>=1.4.3 and I like 
> convenience I've wrote patch which add multimedia key support to EZConfig. 
> 
> Xmonad-contib may become unbuildable if Graphics.X11.ExtraTypes.XF86 does not 
> export such constant.

That is not acceptable.  Either we must conditionally compile this code, or we
leave it out.

> It's possible if corresponding X11 headers does not 
> define them. 
> 
> Is there way to check if function defined other than get compiler error?

There isn't any convenient way I'm aware of.

Perhaps we can use X11's stringToKeysym instead:

    ghci> xF86XK_AudioPause 
    269025073
    ghci> keysymToString xF86XK_AudioPause 
    "XF86AudioPause"
    ghci> stringToKeysym "XF86AudioPause"
    269025073


Cheers,
Spencer Janssen