获取计算机操作系统名称和版本号

//读取操作系统的名称
void CPCHunterDlg::GetSystemName(CString& osname)
{
    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);

    osname = _T("unknown OperatingSystem.");

    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)
                    osname = _T("Microsoft Windows NT 4.0"); //1996年7月发布 
                else if (os.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)
                    osname = _T("Microsoft Windows 95");
                break;
            case 10:
                osname = _T("Microsoft Windows 98");
                break;
            case 90:
                osname = _T("Microsoft Windows Me");
                break;
            }
            break;

        case 5:
            switch (os.dwMinorVersion)    //再比较dwMinorVersion的值
            {
            case 0:
                osname = _T("Microsoft Windows 2000");//1999年12月发布
                break;

            case 1:
                osname = _T("Microsoft Windows XP");//2001年8月发布
                break;

            case 2:
                if (os.wProductType == VER_NT_WORKSTATION
                    && info.wProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
                {
                    osname = _T("Microsoft Windows XP Professional x64 Edition");
                }
                else if (GetSystemMetrics(SM_SERVERR2) == 0)
                    osname = _T("Microsoft Windows Server 2003");//2003年3月发布 
                else if (GetSystemMetrics(SM_SERVERR2) != 0)
                    osname = _T("Microsoft Windows Server 2003 R2");
                break;
            }
            break;

        case 6:
            switch (os.dwMinorVersion)
            {
            case 0:
                if (os.wProductType == VER_NT_WORKSTATION)
                    osname = _T("Microsoft Windows Vista");
                else
                    osname = _T("Microsoft Windows Server 2008");//服务器版本 
                break;
            case 1:
                if (os.wProductType == VER_NT_WORKSTATION)
                {
                    osname = _T("Microsoft Windows 7");
                    IsWin7 = TRUE;
                }
                    
                else
                    osname = _T("Microsoft Windows Server 2008 R2");
                break;
            }
            break;
        }
    }//if(GetVersionEx((OSVERSIONINFO *)&os))

}

//读取操作系统的版本名称
BOOL CPCHunterDlg:: GetVersionMark(CString& vmark)
{
    OSVERSIONINFOEX os;
    os.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
    vmark = _T("");

    if (GetVersionEx((OSVERSIONINFO*)&os))
    {
        switch (os.dwMajorVersion)
        {                //先判断操作系统版本 
        case 5:
            switch (os.dwMinorVersion)
            {
            case 0:                  //Windows 2000 
                if (os.wSuiteMask == VER_SUITE_ENTERPRISE)
                    vmark = _T("Advanced Server");
                break;
            case 1:                  //Windows XP 
                if (os.wSuiteMask == VER_SUITE_EMBEDDEDNT)
                    vmark = _T("Embedded");
                else if (os.wSuiteMask == VER_SUITE_PERSONAL)
                    vmark = _T("Home Edition");
                else
                    vmark = _T("Professional");
                break;
            case 2:
                if (GetSystemMetrics(SM_SERVERR2) == 0
                    && os.wSuiteMask == VER_SUITE_BLADE)  //Windows Server 2003 
                    vmark = _T("Web Edition");
                else if (GetSystemMetrics(SM_SERVERR2) == 0
                    && os.wSuiteMask == VER_SUITE_COMPUTE_SERVER)
                    vmark = _T("Compute Cluster Edition");
                else if (GetSystemMetrics(SM_SERVERR2) == 0
                    && os.wSuiteMask == VER_SUITE_STORAGE_SERVER)
                    vmark = _T("Storage Server");
                else if (GetSystemMetrics(SM_SERVERR2) == 0
                    && os.wSuiteMask == VER_SUITE_DATACENTER)
                    vmark = _T("Datacenter Edition");
                else if (GetSystemMetrics(SM_SERVERR2) == 0
                    && os.wSuiteMask == VER_SUITE_ENTERPRISE)
                    vmark = _T("Enterprise Edition");
                else if (GetSystemMetrics(SM_SERVERR2) != 0
                    && os.wSuiteMask == VER_SUITE_STORAGE_SERVER)
                    vmark = _T("Storage Server");
                break;
            }
            break;

        case 6:
            switch (os.dwMinorVersion)
            {
            case 0:
                if (os.wProductType != VER_NT_WORKSTATION
                    && os.wSuiteMask == VER_SUITE_DATACENTER)
                    vmark = _T("Datacenter Server");
                else if (os.wProductType != VER_NT_WORKSTATION
                    && os.wSuiteMask == VER_SUITE_ENTERPRISE)
                    vmark = _T("Enterprise");
                else if (os.wProductType == VER_NT_WORKSTATION
                    && os.wSuiteMask == VER_SUITE_PERSONAL)  //Windows Vista
                    vmark = _T("Home");
                break;
            }
            break;
        }
    }
    return TRUE;
}