开发Win32程序时, 有时候需要获取系统版本号，以便判断用户在使用软件时的系统。发现GetVersionEx获取的系统版本号是错的, win10以后的系统获取到的一直是版本号6.2.x,正确的应该是10.x.x什么情况？

查找资料后发现,Windows 8.1， Win10之后，通过GetVersion and GetVersionEx 方法获取WIndows操作系统版本号的功能需要添加manifest文件后才能查找到

实操步骤

1.在项目文件夹里添加一个xxx.manifest文件
内容如下:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
    <asmv3:application>
      <asmv3:windowsSettings xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
        <dpiAware>false</dpiAware>
      </asmv3:windowsSettings>
    </asmv3:application>
    <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
        <application>
            <!-- Windows 10 and Windows 11 -->
            <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
            <!-- Windows 8.1 -->
            <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
            <!-- Windows 8 -->
            <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
            <!-- Windows 7 -->
            <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
            <!-- Windows Vista -->
            <supportedOS Id="{e2011457-1546-43c5-a5fe-008deee3d3f0}"/> 
        </application>
    </compatibility>
    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
        <security>
            <requestedPrivileges>
                <!--
                  UAC settings:
                  - app should run at same integrity level as calling process
                  - app does not need to manipulate windows belonging to
                    higher-integrity-level processes
                  -->
                <requestedExecutionLevel
                    level="asInvoker"
                    uiAccess="false"
                />   
            </requestedPrivileges>
        </security>
    </trustInfo>
 </assembly>

2.在项目属性-》清单工具-》输入和输出-》附加清单文件 里增加xxx.manifest文件

$(ProjectDir)os_version.manifest

image.png

测试代码:

wstring OS::GetOsVer(int& major_ver, int& minor_ver) {
    wstring os_name;
    wstring ret;
    OSVERSIONINFOEX osvi;
    ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
    osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
    DWORD dwMajorVersion, dwMinorVersion, dwPlatformID;
    BOOL flag = (BOOL)GetVersionEx((OSVERSIONINFO *)&osvi);
    if (!flag) return L"";
    
    //visit 6.0，win7-6.1，win8 6.2, win8.1 6.3，   win10有BUG，得到的是6.2(添加manifest文件可解决)
    major_ver = osvi.dwMajorVersion;
    minor_ver = osvi.dwMinorVersion;
    dwPlatformID = osvi.dwPlatformId;

    if (GetVersionEx((LPOSVERSIONINFO)&osvi)) {
        // 根据主版本号和次版本号来判断操作系统
        if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1) {
            os_name = L"Windows XP ";// Windows XP
        }
        else if (osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0) {
            os_name = L"Windows 2000"; // Windows 2000
        }
        else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0) {
            os_name = L"Windows Vista"; // Windows Vista
        }
        else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 1) {
            os_name = L"Windows 7"; // Windows 7
        }
        else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 2) {
            os_name = L"Windows 8"; // Windows 8
        }
        else if (osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 3) {
            os_name = L"Windows 8.1"; // Windows 8.1
        }
        else if (osvi.dwMajorVersion == 10 && osvi.dwBuildNumber < 22000) {
            os_name = L"Windows 10"; // Windows 10
        }
        else if (osvi.dwMajorVersion >= 10 && osvi.dwBuildNumber >= 22000) {
            // 对于 Windows Server 和更高版本(例如: Win11)
            os_name = L"Windows 11";
        }
    }
    return !os_name.empty() ? os_name : L"Unknown Operating System";


}

正确获取到版本号

image.png