2d to 3d mapping

[teju]

hi,

i have a window displaying 3d diagram its infact a cosmo3d file(.csb)
and another window displaying 2d diagram using opengl for rendering
and now have to map 2d window to 3d window particularly to some part
of the window displaying 3d diagram...can i do this..

if so please tell me the way to achieve this....

-tejaswini