使用 C# 陷入 Windows CE 5.0 的 MP3 播放器困境

Install-Package OpenNETCF.WindowsCE.Interop

using OpenNETCF.WindowsCE.Interop;

// 创建音频播放器对象
MediaPlayer mp = new MediaPlayer();

// 设置音频文件路径
mp.FileName = @"\My Documents\My Music\song.mp3";

// 播放音频文件
mp.Play();

using System;
using System.Runtime.InteropServices;

public class CoreAudio
{
    [DllImport("coredll.dll", SetLastError = true)]
    public static extern int mmioOpen(out IntPtr hMIO, int wFlags, string szFileName);

    [DllImport("coredll.dll", SetLastError = true)]
    public static extern int mmioClose(IntPtr hMIO, int wFlags);

    [DllImport("coredll.dll", SetLastError = true)]
    public static extern int sndPlaySound(string lpszSoundName, int fuSound);

    public static void PlaySound(string fileName)
    {
        IntPtr hMIO;
        mmioOpen(out hMIO, 0, fileName);
        sndPlaySound(fileName, 0x0001);
        mmioClose(hMIO, 0);
    }
}

// 使用 CoreAudio API 播放音频文件
CoreAudio.PlaySound(@"\My Documents\My Music\song.mp3");

using System;
using System.Runtime.InteropServices;

public class Mci
{
    [DllImport("coredll.dll", SetLastError = true)]
    public static extern int mciSendString(string lpstrCommand, StringBuilder lpstrReturnString, int uReturnLength, IntPtr hwndCallback);

    public static void Play(string fileName)
    {
        mciSendString("open " + fileName + " alias MySound", null, 0, IntPtr.Zero);
        mciSendString("play MySound", null, 0, IntPtr.Zero);
    }

    public static void Stop()
    {
        mciSendString("stop MySound", null, 0, IntPtr.Zero);
        mciSendString("close MySound", null, 0, IntPtr.Zero);
    }
}

// 使用 MCI API 播放音频文件
Mci.Play(@"\My Documents\My Music\song.mp3");