Gl /glaux. H cannot be opened. The solution is to download or copy it in the old version and put it in the directory of VS

VC6.0 C:\Program Files\Microsoft Visual Studio\VC98\Include\GL

VS2010 C:\Program Files\Microsoft SDKS \Windows\v7.0A\Include\gl

VS2013 C:\Program Files\Microsoft SDKS \Windows\v7.1A\Include\gl

1 put the lib files in the corresponding lib folder.

2 puts the.h file in the appropriate include\gl folder.

3 puts the DLL files in the system32 folder.

If it is already copied and still not available, put the corresponding header and library files in the current directory where you wrote them.
#include “GLAUX.h”