Reconstruct a 3D image

My project was converted from vc6.0 to vc2010. It shows no error, everything seems fine. It can reconstruct a 3D image under vc6.0, but now I cann’t see the reconstructed image. By the way, it seems that the project can finish the reconstruction. Because I can see it flicker. But the result is different from vc6.0. Thank you