NTDDI_VERSION，_WIN32_WINNT，WINVER，_WIN32_IE

在使用一些新版本的API，或者控件的新特性（比如新版的ComCtl32.dll）的时候,你可能会得到“error C2065: undeclared identifier.“这个错误。原因是这些功能是依赖于你的操作系统的版本的。而你的头文件中的定义并不是最新的。（对于MFC,就是stdafx.h）下面详细列举了每个Windows版本对应的NTDDI_VERSION，_WIN32_WINNT，WINVER，_WIN32_IE这些宏。

The following table describes the preferred macros in use by the Windows header files.

Minimum system required Macros to define

Windows Server 2008 NTDDI_VERSION >= NTDDI_LONGHORN

Windows Vista NTDDI_VERSION >= NTDDI_VISTA

Windows Server 2003 SP1 NTDDI_VERSION >= NTDDI_WS03SP1

Windows Server 2003 NTDDI_VERSION >= NTDDI_WS03

Windows XP SP2 NTDDI_VERSION >= NTDDI_WINXPSP2

Windows XP SP1 NTDDI_VERSION >= NTDDI_WINXPSP1

Windows XP NTDDI_VERSION >= NTDDI_WINXP

Windows 2000 SP4 NTDDI_VERSION >= NTDDI_WIN2KSP4

Windows 2000 SP3 NTDDI_VERSION >= NTDDI_WIN2KSP3

Windows 2000 SP2 NTDDI_VERSION >= NTDDI_WIN2KSP2

Windows 2000 SP1 NTDDI_VERSION >= NTDDI_WIN2KSP1

Windows 2000 NTDDI_VERSION >= NTDDI_WIN2K

The following table describes the legacy macros in use by the Windows header files.

Minimum system required Macros to define

Windows Server 2008 _WIN32_WINNT>=0x0600

WINVER>=0x0600

Windows Vista _WIN32_WINNT>=0x0600

WINVER>=0x0600

Windows Server 2003 _WIN32_WINNT>=0x0502

WINVER>=0x0502

Windows XP _WIN32_WINNT>=0x0501

WINVER>=0x0501

Windows 2000 _WIN32_WINNT>=0x0500

WINVER>=0x0500

Windows NT 4.0 _WIN32_WINNT>=0x0400

WINVER>=0x0400

Windows Me _WIN32_WINDOWS=0x0500

WINVER>=0x0500

Windows 98 _WIN32_WINDOWS>=0x0410

WINVER>=0x0410

Windows 95 _WIN32_WINDOWS>=0x0400

WINVER>=0x0400

Internet Explorer 7.0 _WIN32_IE>=0x0700

Internet Explorer 6.0 SP2 _WIN32_IE>=0x0603

Internet Explorer 6.0 SP1 _WIN32_IE>=0x0601

Internet Explorer 6.0 _WIN32_IE>=0x0600

Internet Explorer 5.5 _WIN32_IE>=0x0550

Internet Explorer 5.01 _WIN32_IE>=0x0501

Internet Explorer 5.0, 5.0a, 5.0b _WIN32_IE>=0x0500

Internet Explorer 4.01 _WIN32_IE>=0x0401

Internet Explorer 4.0 _WIN32_IE>=0x0400

Internet Explorer 3.0, 3.01, 3.02 _WIN32_IE>=0x0300