Create a stereo viewer

[David Geldreich <David.Geldreich@xxxxxxxxxxxxxxx>]

     Hello IVers,

     I would like to create a stereo (above-below) viewer base on
SoXtExaminerViewer and I am wondering if it is the best way to do it ?
Above-below stereo consist of separating the screen in 2 areas (above
and below), drawing the left view in the above part and right view in
the below part.

     I am wondering if the simplest is to directly extent SoXtViewer as
it is there that the wall stereo thing is happening
(SoXtViewer::setStereoViewing, SoXtViewer::actualRedraw)?

     Thanks in advance.