stop cycling desktops with scrollbutton

[Nils Rennebarth]

Olivier Fourdan wrote:
> 1) xfdesktop could let the event pass thru just like rox does...
I'll try to find that out. Does it just take the events and send it to 
the root window using XSendEvent? Or does X have a mechanism for 
overlapping windows to specify that the upper window just ignores the 
event, so it drops through?

> 2) Don't remove the feature from xfwm4, as some people use it w/out
> xfdesktop and xfce.
Ok, I already suspected something like this. So at least my patch to 
xfwm4 was not completely useless :-)