媒体播放中的WMPLib控制台应用程序异常

Question

我不习惯使用InteropServices，但我正在使用WMPLib播放控制台应用程序中的歌曲。 当我从Visual Studio进行调试时，该应用程序按预期工作。但它崩溃，并让我有以下异常：

Unhandled Exception: System.Runtime.InteropServices.COMException: The message filter indicated that the application is busy. (Exception from HRESULT: 0x8001010A (RPC_E_SERVERCALL_RETRYLATER)) 
    at WMPLib.IWMPPlayer4.get_controls() 
    at ConsoleMP3Player.Program.Main(String[] args) in C:\Users\Ibrahim\Desktop\Console.Mp3\Console.Mp3\Program.cs:line 67 

当我从命令行中运行：

C:\Users\Ibrahim\Desktop\Console.Mp3\Console.Mp3\bin\Debug>ConsoleMP3Player play 

以下为play命令的简单代码：

var _player = new WindowsMediaPlayer(); 
_player.URL = "Full path to a mp3 file"; 
_player.controls.play(); 

任何帮助，非常感谢。

Answer 1

而不是错误的COM控件，请尝试使用托管和线程安全的MediaPlayer类。添加一个对PresentationCore和WindowsBase的引用，并试试这个：

using System.Windows.Media; 

public void PlaySoundAsync(string filename) 
{ 
    // This plays the file asynchronously and returns immediately. 
    MediaPlayer mp = new MediaPlayer(); 
    mp.MediaEnded += new EventHandler(Mp_MediaEnded); 
    mp.Open(new Uri(filename)); 
    mp.Play(); 
} 

private void Mp_MediaEnded(object sender, EventArgs e) 
{ 
    // Close the player once it finished playing. You could also set a flag here or raise another event. 
    ((MediaPlayer)sender).Close(); 
}