Anyone Using RingZero Components?

Hi,

 I'm looking for a way to plot a pixel using RingZero Components.  I know
you need to lock the surface, get a pointer to the surface, and then write
to the surface.  The problem I'm having is the dwSize field of the surface
description needs to be filled, but it doesn't appear to have the required
property in the component.  I'm using C++ code as an example, so I might be
completely off track.

Thanks in advance,
Daniel Spiess