c# - 我如何捕捉 iTunes 事件？

Question

我已经添加了这段代码

        iTunes.OnPlayerPlayingTrackChangedEvent += new _IiTunesEvents_OnPlayerPlayingTrackChangedEventEventHandler(iTunes_OnPlayerPlayingTrackChangedEvent);

和这段代码

private void iTunes_OnPlayerPlayingTrackChangedEvent(object iTrack)
    {
        if (iTunes.CurrentTrack != null)
        {
            if (iTunes.CurrentTrack.Artist != null & iTunes.CurrentTrack.Album != null & iTunes.CurrentTrack.Name != null)
            {
                artist = iTunes.CurrentTrack.Artist;
                album = iTunes.CurrentTrack.Album;
                title = iTunes.CurrentTrack.Name;

                if (!NowPlaying.IsBusy)
                {
                    NowPlaying.RunWorkerAsync();
                }
            }
        }
    }

我的应用程序是用 c# 编程的，但当歌曲改变时它没有捕捉到。我错过了什么吗？

有没有其他方法可以捕获 iTunes 轨道更改事件？

Answer 1

您实际上订阅了错误的事件来捕获此信息。

这是一个代码片段，可以满足您的需求:

        iTunesApp app = new iTunesApp();

    public Form1()
    {
        InitializeComponent();
        app.OnPlayerPlayEvent += new _IiTunesEvents_OnPlayerPlayEventEventHandler(app_OnPlayerPlayEvent);   
    }

    public void app_OnPlayerPlayEvent(object iTrack)
    {
        IITTrack currentTrack = (IITTrack)iTrack;
        string trackName = currentTrack.Name;
        string artist = currentTrack.Artist;
        string album = currentTrack.Album;

    }