对一段预编译代码的不理解

Question

      使用VS 2005新建一个单文档工程，其stdafx.h会有下面一段代码：

#ifdef _UNICODE  
#if defined _M_IX86  
#pragma comment(linker,"/manifestdependency:/"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='x86' publicKeyToken='6595b64144ccf1df' language='*'/"")  
#elif defined _M_IA64  
#pragma comment(linker,"/manifestdependency:/"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='ia64' publicKeyToken='6595b64144ccf1df' language='*'/"")  
#elif defined _M_X64  
#pragma comment(linker,"/manifestdependency:/"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='amd64' publicKeyToken='6595b64144ccf1df' language='*'/"")  
#else  
#pragma comment(linker,"/manifestdependency:/"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'/"")  
#endif

据网上的一种说法，该段代码具有打开xp界面风格的作用，具体见：
VC6风格转XP风格界面的两种方法

  我比较奇怪的是为何这段代码要指定unicode字符集下才起作用？去掉#ifdef _UNICODE 会有副作用吗？

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Answer 1

一般的，_UNICODE和UNICODE都会同时定义的，要么都定义，要么一个也不定义。

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Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.

Answer 2

一般的，_UNICODE和UNICODE都会同时定义的，要么都定义，要么一个也不定义。

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Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.

           大侠，我问的是为何这段代码不支持多字节字符集？

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Answer 3

http://blog.csdn.net/kakaxisama/article/details/5221421

参考这篇blog，希望对您有帮助~

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Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.

Answer 4

http://blog.csdn.net/kakaxisama/article/details/5221421

参考这篇blog，希望对您有帮助~

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Visual C++ enthusiast, like network programming and driver development. At present is being engaged in the WinCE/Windows Mobile platform embedded development.

      官方的文档说明是comctl32.dll version6只支持unicode，非unicode下使用会出现异常
非unicode下使用一般也没啥问题，可能是在某种情况下才会异常。

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前无古人，后无来者

Answer 5

在多字符集的配置下，使用这段代码会出现异常，我想在多字符集配置下修改控件的风格，使用以上代码Edit Browse控件报错