微软在windows 10的版本号获取上留下一个坑，如果用GetVersionEx获取版本号，则获取到的是6.2.9200
官方有如下说明
[GetVersionExmay be altered or unavailable for releases after Windows8.1. Instead, use theVersion Helper APIs]
也就是8.1开始就不正常了，那么如何正常判断版本号呢，下面列举一下可用的三个方法吧
""""""但是这种方法局限性比较大，如果只是开发静态库什么的，就不可行2.通过系统文件来读取
这是win10 kernel32.dll文件的属性信息，看到没有，这里有版本信息
可以通过GetFileVersionInfo来获取，具体实现就不讲了
3.使用微软推荐的Version Helper APIs来获取
函数是这个样子的：
IsWindows10OrGreater()
但是Requirements是这样的：
Minimum supported client
Windows10 Technical Preview [desktop apps only]
Minimum supported server
Windows Server Technical Preview [desktop apps only]
Header
VersionHelpers.h (include Windows.h)
Library
Kernel32.lib;Ntdll.lib
DLL
Kernel32.dll;Ntdll.dll
需要windows 10以后才可用,老版本的系统怎么用呢 是不是只有win10下的kernel32.dll才导出了这个函数呢，，是不是需要动态获取这个函数来判断?
用IDA看了一下win10 kernel32.dll的导出函数，没看到有这个函数，猜测应该是由头文件来实现的，于是找来一份VersionHelpers.h
真相大白，其实就是调用ntdll里的RtlGetVersion函数来实现的。我们只需要拷贝一份这个头文件，直接调用相应的函数就可以了
贴一下这个头文件吧
/********************************************************************* VersionHelpers.h — This module defines helper functions to **promote version check with proper**comparisons.**** Copyright (c) Microsoft Corp. All rights reserved.*********************************************************************/#ifndef _versionhelpers_H_INCLUDED_#define _versionhelpers_H_INCLUDED_#ifndef ___XP_BUILD#define WINAPI_PARTITION_DESKTOP (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP)#define WINAPI_FAMILY WINAPI_FAMILY_DESKTOP_APP#define WINAPI_FAMILY_PARTITION(Partitions)(Partitions)#define _WIN32_WINNT_NT40x0400#define _WIN32_WINNT_WIN2K0x0500#define _WIN32_WINNT_WINXP0x0501#define _WIN32_WINNT_WS030x0502#define _WIN32_WINNT_WIN60x0600#define _WIN32_WINNT_VISTA0x0600#define _WIN32_WINNT_WS080x0600#define _WIN32_WINNT_LONGHORN0x0600#define _WIN32_WINNT_WIN70x0601#define _WIN32_WINNT_WIN80x0602#endif#ifdef _MSC_VER#pragma once#endif // _MSC_VER#pragma region Application Family#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)#include <specstrings.h> // for _In_, etc.#if !defined(__midl) && !defined(SORTPP_PASS)#if (NTDDI_VERSION >= NTDDI_WINXP)#ifdef __cplusplus#define VERSIONHELPERAPI inline bool#else // __cplusplus#define VERSIONHELPERAPI FORCEINLINE BOOL#endif // __cplusplus#define _WIN32_WINNT_WINBLUE0x0603#define _WIN32_WINNT_WIN100x0A00typedef NTSTATUS( NTAPI* fnRtlGetVersion )(PRTL_OSVERSIONINFOW lpVersionInformation);VERSIONHELPERAPIIsWindowsVersionOrGreater(WORD wMajorVersion, WORD wMinorVersion, WORD wServicePackMajor){/*OSVERSIONINFOEXW osvi = { sizeof(osvi), 0, 0, 0, 0, {0}, 0, 0 };DWORDLONGconst dwlConditionMask = VerSetConditionMask(VerSetConditionMask(VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL),VER_MINORVERSION, VER_GREATER_EQUAL),VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);osvi.dwMajorVersion = wMajorVersion;osvi.dwMinorVersion = wMinorVersion;osvi.wServicePackMajor = wServicePackMajor;return VerifyVersionInfoW(&osvi, VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR, dwlConditionMask) != FALSE;*/RTL_OSVERSIONINFOEXW verInfo = { 0 };verInfo.dwOSVersionInfoSize = sizeof( verInfo );static auto RtlGetVersion = (fnRtlGetVersion)GetProcAddress( GetModuleHandleW( L"ntdll.dll" ), "RtlGetVersion" );if (RtlGetVersion != 0 && RtlGetVersion( (PRTL_OSVERSIONINFOW)&verInfo ) == 0){if (verInfo.dwMajorVersion > wMajorVersion)return true;else if (verInfo.dwMajorVersion < wMajorVersion)return false;if (verInfo.dwMinorVersion > wMinorVersion)return true;else if (verInfo.dwMinorVersion < wMinorVersion)return false;if (verInfo.wServicePackMajor >= wServicePackMajor)return true;}return false;}VERSIONHELPERAPIIsWindowsXPOrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WINXP ), LOBYTE( _WIN32_WINNT_WINXP ), 0 );}VERSIONHELPERAPIIsWindowsXPSP1OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WINXP ), LOBYTE( _WIN32_WINNT_WINXP ), 1 );}VERSIONHELPERAPIIsWindowsXPSP2OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WINXP ), LOBYTE( _WIN32_WINNT_WINXP ), 2 );}VERSIONHELPERAPIIsWindowsXPSP3OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WINXP ), LOBYTE( _WIN32_WINNT_WINXP ), 3 );}VERSIONHELPERAPIIsWindowsVistaOrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_VISTA ), LOBYTE( _WIN32_WINNT_VISTA ), 0 );}VERSIONHELPERAPIIsWindowsVistaSP1OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_VISTA ), LOBYTE( _WIN32_WINNT_VISTA ), 1 );}VERSIONHELPERAPIIsWindowsVistaSP2OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_VISTA ), LOBYTE( _WIN32_WINNT_VISTA ), 2 );}VERSIONHELPERAPIIsWindows7OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WIN7 ), LOBYTE( _WIN32_WINNT_WIN7 ), 0 );}VERSIONHELPERAPIIsWindows7SP1OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WIN7 ), LOBYTE( _WIN32_WINNT_WIN7 ), 1 );}VERSIONHELPERAPIIsWindows8OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WIN8 ), LOBYTE( _WIN32_WINNT_WIN8 ), 0 );}VERSIONHELPERAPIIsWindows8Point1OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WINBLUE ), LOBYTE( _WIN32_WINNT_WINBLUE ), 0 );}VERSIONHELPERAPIIsWindows10OrGreater(){return IsWindowsVersionOrGreater( HIBYTE( _WIN32_WINNT_WIN10 ), LOBYTE( _WIN32_WINNT_WIN10 ), 0 );}VERSIONHELPERAPIIsWindowsServer(){OSVERSIONINFOEXW osvi = { sizeof( osvi ), 0, 0, 0, 0, { 0 }, 0, 0, 0, VER_NT_WORKSTATION };DWORDLONGconst dwlConditionMask = VerSetConditionMask( 0, VER_PRODUCT_TYPE, VER_EQUAL );return !VerifyVersionInfoW( &osvi, VER_PRODUCT_TYPE, dwlConditionMask );}#endif // NTDDI_VERSION#endif // defined(__midl)#endif /* WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP) */#pragma endregion#endif // _VERSIONHELPERS_H_INCLUDED_
最困难之时，就是我们离成功不远之日。
