Thanks Keith, that's just what I was hoping for. :-)

Rich.

Keith Packard wrote:
> 
> Around 3 o'clock on Apr 30, Richard Moore wrote:
> 
> > Can anyone tell me if the overhead of a masked window (using
> > the Shape extension)
> 
> The mask is internally converted to a list of rectangles.
> 
> keithp@keithp.com        XFree86 Core Team              SuSE, Inc.

-- 
     Richard Moore		rich@ipso-facto.freeserve.co.uk
http://developer.kde.org/	rich@kde.org