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Asked: 2026-05-12T10:14:15+00:00

I have a VC++ project in Visual Studio 2008. It is defining the symbols

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I have a VC++ project in Visual Studio 2008.

It is defining the symbols for unicode on the compiler command line (/D "_UNICODE" /D "UNICODE"), even though I do not have this symbol turned on in the preprocessor section for the project.

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As a result I am compiling against the Unicode versions of all the Win32 library functions, as opposed to the ANSI ones. For example in WinBase.h, there is: 

#ifdef UNICODE
#define CreateFile  CreateFileW
#else
#define CreateFile  CreateFileA
#endif // !UNICODE

Where is the unicode being turned on in the VC++ project, how can I turn it off?

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1 Answer

  1. Editorial Team

    Have you tried: Project Properties – General – Project Defaults – Character Set?

    See answers in this question for the differences between “Use Multi-Byte Character Set” and “Not Set” options: About the "Character set" option in visual studio 2010

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