GL_SELECT amd select an area.

Hi all,
recenely I came across GL_SELECT mode, for selcting objects drawing using openGL. before using it, I need a help. Is it possible to select objects within a rectangular area using SELECT mode.

Thanks and Regards
DM

Is it possible to select objects within a rectangular area using SELECT mode.
Yes, it is.

http://www.lighthouse3d.com/opengl/picking/