How to prevent macro redefinition

Question

After working some time on my project, this warning begins to appear:

2>Game.cpp
2>c:\\program files\\microsoft sdks\\windows\\v6.0a\\include\\windef.h         


        

Answer 1

Microsoft doesn't generally design headers to be free-standing. Most of the Windows-oriented headers require that you have first included . Except for the dependency on that Mother Of All Headers, usually there are no specific header dependencies so by including first you shouldn't have any problem.