contour written with Visual C++ and need OpenGL

contour\contour.c
.......\contour.dsp
.......\contour.dsw
.......\contour.ncb
.......\contour.opt
.......\contour.plg
.......\Debug
.......\.....\contour.exe
.......\.....\contour.ilk
.......\.....\contour.obj
.......\.....\contour.pch
.......\.....\contour.pdb
.......\.....\vc60.idb
.......\.....\vc60.pdb

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