c# mediaplayer 设置可视化效果之条形,buss效果

//设置可视化效果，参数value设为4即可
        public void SetCurrentEffectPreset(int value)
        {
            WindowsIdentity identiry = WindowsIdentity.GetCurrent();
            String path = String.Format(@"{0}\Software\Microsoft\MediaPlayer\Preferences", identiry.User.Value);
            RegistryKey key = Registry.Users.OpenSubKey(path, true);
            if (key != null)
            {
                key.SetValue("CurrentEffectPreset", value, RegistryValueKind.DWord);
            }
        }