C1189: #error : WINDOWS.H already included. MFC apps must not #include <windows.h>

Question

I'm building a C++ project which includes 2 libraries whom implicitly include for 2 times windows.h :

1. afxwin.h
2. atlbase.h (not sure)

Knowing that I need these two libraries into my project, how do I to get around this issue?

Any brilliant idea, please?

Answer 1

Try to hide mentioned libraries using some facade interface that these includes are not visible in the same compilation unit.

Answer 2

I encountered the same issue when building a Win32 app in visual studio 2010. A solution that worked for me was:

1. Open stdafx.h
2. Replace #include <windows.h> with #include <afxwin.h>