如何以编程方式获取Vista版？

#include<iostream>
#include<Windows.h>

int main() {
    OSVERSIONINFOEX osvi;
    ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
    osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);

    if (GetVersionEx((LPOSVERSIONINFOW)&osvi)) {
        std::cout << "Windows Vista version: " << osvi.dwMajorVersion << "." << osvi.dwMinorVersion<< std::endl;
    } else {
        std::cout << "Error: Unable to get Windows Vista version."<< std::endl;
    }

    return 0;
}

#include<iostream>
#include<Windows.h>
#include<VersionHelpers.h>

int main() {
    if (IsWindowsVistaOrGreater()) {
        std::cout << "This computer is running Windows Vista or later."<< std::endl;
    } else {
        std::cout << "This computer is not running Windows Vista or later."<< std::endl;
    }

    return 0;
}