[openbox] How to bind the Super key (just the super key)?

[seanh]

> >Hey, in Ubuntu's Unity I just tap the Windows key to activate the dash.
> >I think Gnome 3 does something similar, too.
> >
> >Is it possible to bind just tapping the Windows key alone in openbox?
> >
> "Super_L" is what you've to write. I don't know about the press and
> hold thing, though.

So close! Sadly it doesn't seem to recognize the difference between
tapping the Super key on its own and holding down the Super key and
pressing another key.

For example I have W-Left/Right/Up/Down bound to window changing
actions. If I also bind Super_L to launch gnome-pie (or alternatively to
show the openbox root menu), then when I do W-Left for example it
launches gnome-pie as well as changing to the window to the left.

So I'm back to W-Space to launch gnome-pie :(