C++获得Windows版本

void getSystemName()
{
	std::string vname;
	//先判断是否为win8.1或win10
	typedef void(__stdcall*NTPROC)(DWORD*, DWORD*, DWORD*);
	HINSTANCE hinst = LoadLibrary(L"ntdll.dll");
	DWORD dwMajor, dwMinor, dwBuildNumber;
	NTPROC proc = (NTPROC)GetProcAddress(hinst, "RtlGetNtVersionNumbers"); 
	proc(&dwMajor, &dwMinor, &dwBuildNumber); 
	if (dwMajor == 6 && dwMinor == 3)	//win 8.1
	{
		vname = "Microsoft Windows 8.1";
		printf_s("此电脑的版本为:%s\n", vname.c_str());
		return;
	}
	if (dwMajor == 10 && dwMinor == 0)	//win 10
	{
		vname = "Microsoft Windows 10";
		printf_s("此电脑的版本为:%s\n", vname.c_str());
		return;
	}
	//下面判断不能Win Server,因为本人还未有这种系统的机子,暂时不给出
 
 
 
	//判断win8.1以下的版本
	SYSTEM_INFO info;                //用SYSTEM_INFO结构判断64位AMD处理器  
	GetSystemInfo(&info);            //调用GetSystemInfo函数填充结构  
	OSVERSIONINFOEX os;
	os.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
	#pragma warning(disable:4996)
	if (GetVersionEx((OSVERSIONINFO *)&os))
	{
 
		//下面根据版本信息判断操作系统名称  
		switch (os.dwMajorVersion)
		{                        //判断主版本号  
		case 4:
			switch (os.dwMinorVersion)
			{                //判断次版本号  
			case 0:
				if (os.dwPlatformId == VER_PLATFORM_WIN32_NT)
					vname ="Microsoft Windows NT 4.0";  //1996年7月发布  
				else if (os.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)
					vname = "Microsoft Windows 95";
				break;
			case 10:
				vname ="Microsoft Windows 98";
				break;
			case 90:
				vname = "Microsoft Windows Me";
				break;
			}
			break;
		case 5:
			switch (os.dwMinorVersion)
			{               //再比较dwMinorVersion的值  
			case 0:
				vname = "Microsoft Windows 2000";    //1999年12月发布  
				break;
			case 1:
				vname = "Microsoft Windows XP";      //2001年8月发布  
				break;
			case 2:
				if (os.wProductType == VER_NT_WORKSTATION &&
					info.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
					vname = "Microsoft Windows XP Professional x64 Edition";
				else if (GetSystemMetrics(SM_SERVERR2) == 0)
					vname = "Microsoft Windows Server 2003";   //2003年3月发布  
				else if (GetSystemMetrics(SM_SERVERR2) != 0)
					vname = "Microsoft Windows Server 2003 R2";
				break;
			}
			break;
		case 6:
			switch (os.dwMinorVersion)
			{
			case 0:
				if (os.wProductType == VER_NT_WORKSTATION)
					vname = "Microsoft Windows Vista";
				else
					vname = "Microsoft Windows Server 2008";   //服务器版本  
				break;
			case 1:
				if (os.wProductType == VER_NT_WORKSTATION)
					vname = "Microsoft Windows 7";
				else
					vname = "Microsoft Windows Server 2008 R2";
				break;
			case 2:
				if (os.wProductType == VER_NT_WORKSTATION)
					vname = "Microsoft Windows 8";
				else
					vname = "Microsoft Windows Server 2012";
				break;
			}
			break;
		default:
			vname = "未知操作系统";
		}
		printf_s("此电脑的版本为:%s\n", vname.c_str());
	}
	else
		printf_s("版本获取失败\n");
}

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