Hi Robert, Thanks for that. I thought it would be easier to derive from existing zip reader, but evidently that wasn't the way to do it as I then ended up creating two "zip" reader instances as the proxy construction and the class definition for the base zip reader are in the cpp file. I've fixed my problem by simply deriving from ReaderWriter instead.
This brings me to a more general question about readers. Is there a reason why some employ the .h .cpp conventions, whilst others roll them all into one - either .h or .cpp ? Thanks again for the info. Neil _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
