我需要一些帮助来设置 Windows Media Player 音频的 BackgroundWorker 进程。我需要直接从 BackgroundWorker 运行音频（WMP），而不是从主线程，并且该后台进程需要保持打开状态直到音频文件结束，但即使音频在 PLAY 上开始正常播放，BackgroundWorker 也会停止，因此我认为音频实际上并没有在第二个线程或 backgroundWorker 上播放，因为它已经关闭。
我的问题是，如何使用 Windows Media Player (WMPLib) 从 backgroundWorker 播放此音频文件，该文件将保持打开状态直到歌曲结束？
using WMPLib;
namespace mediaplayer
{
public partial class MainWindow : Window
{
BackgroundWorker m_audioProcessingWorker;
public MainWindow()
{
InitializeComponent();
}
string filename = @"C:\audio\song1.mp3"
private void button_play_Click(object sender, EventArgs e)
{
// Create the Audio Processing Worker (Thread)
m_audioProcessingWorker = new BackgroundWorker();
m_audioProcessingWorker.DoWork += new DoWorkEventHandler(audioProcessingWorker_DoWork);
m_audioProcessingWorker.RunWorkerAsync();
m_audioProcessingWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(audioProcessingWorker_Completed);
}
private void audioProcessingWorker_DoWork(object sender, DoWorkEventArgs e)
{
try
{
axWindowsMediaPlayer1.URL = filename;
axWindowsMediaPlayer1.Ctlcontrols.play();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void audioProcessingWorker_Completed(object sender, RunWorkerCompletedEventArgs e)
{
MessageBox.Show("Audio is finished");
}
private void button_stop_Click(object sender, EventArgs e)
{
axWindowsMediaPlayer1.Ctlcontrols.stop();
m_audioProcessingWorker.CancelAsync();
}
private void button_pause_Click(object sender, EventArgs e)
{
axWindowsMediaPlayer1.Ctlcontrols.pause();
}
}
}
谢谢。