c# - 在C#中播放音频文件

Question

我需要播放 mp3 文件。我想使用 winmm.dll (Windows 7)

class Program
{
    [DllImport("winmm.dll")]
    private static extern long mciSendString(string Cmd, StringBuilder StrReturn, int ReturnLength, IntPtr HwndCallback);

    static void Main(string[] args)
    {
        string FileName = @"F:\MUSIC\ROCK.mp3";

        string CommandString = "open " + "\"" + FileName + "\"" + " type mpegvideo alias Mp3File";
        mciSendString(CommandString, null, 0, IntPtr.Zero);
        CommandString = "play Mp3File";
        mciSendString(CommandString, null, 0, IntPtr.Zero);
        Console.ReadKey();
    }
}

但是当我运行我的程序时，什么也没有发生。哪里出错了？

Answer 1

已接受的答案不适用于包含空格的文件路径。正确的方法是使用你在打开命令中设置的别名:

string FileName = @"F:\MUSIC\ROCK.mp3";
mciSendString("open \"" + FileName + "\" type mpegvideo alias thisIsMyTag", null, 0, IntPtr.Zero);
mciSendString("play thisIsMyTag from 0", null, 0, IntPtr.Zero);