A class to play sound on netcf in CSharp-优快云博客

本文介绍了一个用于异步播放声音文件的小型实用程序类。该类定义了播放声音的不同标志，并提供了一个静态方法来实现声音文件的异步播放。

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using System;
using System.Runtime.InteropServices;
using System.Collections.Generic;
using System.Text;

namespace MiniCafe.Util
{
    /// <summary>
    /// internal helper class
    /// </summary>
    internal class Helpers
    {
        [Flags]
        public enum PlaySoundFlags : int
        {
            SND_SYNC = 0x0000, /* play synchronously (default) */
            SND_ASYNC = 0x0001, /* play asynchronously */
            SND_NODEFAULT = 0x0002, /* silence (!default) if sound not found */
            SND_MEMORY = 0x0004, /* pszSound points to a memory file */
            SND_LOOP = 0x0008, /* loop the sound until next sndPlaySound */
            SND_NOSTOP = 0x0010, /* don't stop any currently playing sound */
            SND_NOWAIT = 0x00002000, /* don't wait if the driver is busy */
            SND_ALIAS = 0x00010000, /* name is a registry alias */
            SND_ALIAS_ID = 0x00110000, /* alias is a predefined ID */
            SND_FILENAME = 0x00020000, /* name is file name */
            SND_RESOURCE = 0x00040004 /* name is resource name or atom */
        }
        [DllImport("coredll")]
        public static extern bool PlaySound(string szSound, IntPtr hMod,PlaySoundFlags flags);
    }
    /// <summary>
    /// sound class to play a file
    /// </summary>
    public class Sound
    {
        public static void Play(string strFileName)
        {
            Helpers.PlaySound(strFileName, IntPtr.Zero,
            Helpers.PlaySoundFlags.SND_FILENAME | Helpers.PlaySoundFlags.SND_ASYNC);
        }
    }
}