winform控件问题

yinsuxia 2008-12-07 09:20:10

在播放声音片段时，如何让声音只播放一次？

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fskjb01 2008-12-07

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pp_shy 2008-12-07

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调用API方法来试试



public class PlayWav

{

    public PlayWav()

    {

        

    }



    public enum PlaySoundFlags  : int

    {  

        SND_SYNC = 0x0000,

        SND_ASYNC = 0x0001,

        SND_NODEFAULT = 0x0002,

        SND_MEMORY = 0x0004,

        SND_LOOP = 0x0008,

        SND_NOSTOP = 0x0010,

        SND_NOWAIT = 0x00002000,

        SND_ALIAS = 0x00010000,

        SND_ALIAS_ID = 0x00110000, 

        SND_FILENAME = 0x00020000,

        SND_RESOURCE = 0x00040004

    }

        

    [DllImport("winmm")]

    public static extern bool PlaySound(string szSound, IntPtr hMod, PlaySoundFlags flags);



    //改方法就是播放wav声音文件，参数是wav声音文件的全路径

    public static void Play(string strFileName)

    {

        PlaySound(strFileName, IntPtr.Zero, PlaySoundFlags.SND_FILENAME | PlaySoundFlags.SND_ASYNC);

    }

}