最近又重装了系统，调程序的时候发现Opengl没有了，就又装了一遍，把整个过程写下来，省得以后忘了。

1. Copy glut32.lib and glut.def to C:\Program Files\Microsoft Platform SDK\Lib

2. Copy glut.h to C:\Program Files\Microsoft Platform SDK\Include\gl

3. Copy glut32.dll to C:\WINDOWS\system

4. Revise glut.h,  otherwise you will meet the error "c:\Program Files\Microsoft Visual Studio .NET\Vc7\include\stdlib.h(251): error C2381: ‘exit’ : redefinition; __declspec(noreturn) differs"

    #if defined(_WIN32)

    # ifndef GLUT_BUILDING_LIB

    /*extern _CRTIMP void __cdecl exit(int);*/

    _CRTIMP __declspec(noreturn) void __cdecl exit(int);

    # endif