请问关于c的具体应用场景有哪些？

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我增加了代码片段，以下是简化后的内容：

csharp添加了代码段：iTunes.OnPlayerPlayingTrackChangedEvent +=new _IiTunesEvents_OnPlayerPlayingTrackChangedEventEventHandler(iTunes_OnPlayerPlayingTrackChangedEvent);和代码段：private void iTunes_OnPlayerPlayingTrackChangedEvent()

我添加了这段代码

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,但是当歌曲改变时它没有捕获.我错过了什么吗？

有没有其他方法来捕捉iTunes曲目更改事件？

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,可以为您提供所需内容：

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; }