win10 系统版本号获取的三种方法

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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

[GetVersionEx may be altered or unavailable for releases after Windows 8.1. Instead, use the Version 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

1.manifest文件加上compatibility节点

<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">         <application>             <!-- Windows 10 -->             <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>            <!-- Windows 8.1 -->            <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>            <!-- Windows Vista -->            <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/>             <!-- Windows 7 -->            <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>            <!-- Windows 8 -->            <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>        </application>     </compatibility>

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

Windows 10 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_NT4                    0x0400#define _WIN32_WINNT_WIN2K                  0x0500#define _WIN32_WINNT_WINXP                  0x0501#define _WIN32_WINNT_WS03                   0x0502#define _WIN32_WINNT_WIN6                   0x0600#define _WIN32_WINNT_VISTA                  0x0600#define _WIN32_WINNT_WS08                   0x0600#define _WIN32_WINNT_LONGHORN               0x0600#define _WIN32_WINNT_WIN7                   0x0601#define _WIN32_WINNT_WIN8                   0x0602#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_WINBLUE                0x0603#define _WIN32_WINNT_WIN10                  0x0A00typedef NTSTATUS( NTAPI* fnRtlGetVersion )(PRTL_OSVERSIONINFOW lpVersionInformation);VERSIONHELPERAPIIsWindowsVersionOrGreater(WORD wMajorVersion, WORD wMinorVersion, WORD wServicePackMajor){    /*OSVERSIONINFOEXW osvi = { sizeof(osvi), 0, 0, 0, 0, {0}, 0, 0 };    DWORDLONG        const 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 };    DWORDLONG        const 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_

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