⭐Unity 控制电脑系统声音大小静音开关

惊鸿醉

于 2024-06-07 19:06:06 发布

阅读量436

点赞数 2

分类专栏： Unity 文章标签： unity 游戏引擎

本文链接：https://blog.youkuaiyun.com/weixin_53501436/article/details/139534109

版权

Unity 专栏收录该内容

41 篇文章

订阅专栏

#region System
    [DllImport("user32.dll")]
    static extern void keybd_event(byte bVk, byte bScan, UInt32 dwFlags, UInt32 dwExtraInfo);

    [DllImport("user32.dll")]
    static extern Byte MapVirtualKey(UInt32 uCode, UInt32 uMapType);

    private const byte VK_VOLUME_MUTE = 0xAD;
    private const byte VK_VOLUME_DOWN = 0xAE;
    private const byte VK_VOLUME_UP = 0xAF;
    private const UInt32 KEYEVENTF_EXTENDEDKEY = 0x0001;
    private const UInt32 KEYEVENTF_KEYUP = 0x0002;

    /// <summary>
    /// 改变系统音量大小，增加
    /// </summary>
    public void SystemVolumeUp()
    {
        keybd_event(VK_VOLUME_UP, MapVirtualKey(VK_VOLUME_UP, 0), KEYEVENTF_EXTENDEDKEY, 0);
        keybd_event(VK_VOLUME_UP, MapVirtualKey(VK_VOLUME_UP, 0), KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
    }

    /// <summary>
    /// 改变系统音量大小，减小
    /// </summary>
    public void SystemVolumeDown()
    {
        keybd_event(VK_VOLUME_DOWN, MapVirtualKey(VK_VOLUME_DOWN, 0), KEYEVENTF_EXTENDEDKEY, 0);
        keybd_event(VK_VOLUME_DOWN, MapVirtualKey(VK_VOLUME_DOWN, 0), KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
    }

    /// <summary>
    /// 改变系统音量大小，静音
    /// </summary>
    public void SystemMute()
    {
        keybd_event(VK_VOLUME_MUTE, MapVirtualKey(VK_VOLUME_MUTE, 0), KEYEVENTF_EXTENDEDKEY, 0);
        keybd_event(VK_VOLUME_MUTE, MapVirtualKey(VK_VOLUME_MUTE, 0), KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);
    }
    #endregion

感谢大家的观看，您的点赞和关注是我最大的动力

不定时更新知识点和干货呦~