c# 窗体背景音乐重复循环播放

[shuchong0707]

我在主窗体中加了一个背景音乐,我想让这首背景音乐在我所有窗体里都能循环播放,该怎样弄?

[ZengHD]

你是怎么播放音乐的？
一般都有“状态改变事件”，在这个事件里判断状态是不是停止状态，如果是，那就再播放一次

[hyblusea]

添加引用 quartz.dll

void playmusic() 
{ 
  string mp3File=Application.StartupPath+"\\mp3\\你若成风.mp3"; 
  QuartzTypeLib.FilgraphManager graphManager=new QuartzTypeLib.FilgraphManager ; 
  QuartzTypeLib.IMediaControl mycontrol=(QuartzTypeLib.IMediaControl)graphManager; 
  mycontrol.RenderFile(mp3File); 
  mycontrol.Run(); 
} 

使用quartz.dll(DX提供的一个音频解码类),然后在播放结束事件中,再次调用 mycontrol.Run() 就可实现循环播放了

[王集鹄]

using System.Runtime.InteropServices;

public static uint SND_ASYNC = 0x0001;  // play asynchronously 
public static uint SND_FILENAME = 0x00020000; // name is file name
[DllImport("winmm.dll")]
public static extern uint mciSendString(string lpstrCommand, 
    string lpstrReturnString, uint uReturnLength, uint hWndCallback);

private void button1_Click(object sender, EventArgs e)
{
    mciSendString(@"close temp_alias", null, 0, 0);
    mciSendString(@"open ""E:\音乐\周杰伦-东风破.mp3"" alias temp_alias",
        null, 0, 0);
    mciSendString("play temp_alias repeat", null, 0, 0);
}

Declare Function sndPlaySound Lib "winmm.dll" Alias "sndPlaySoundA" ( _
    ByVal lpszSoundName As String, ByVal uFlags As Long) As Long
Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" ( _
    ByVal lpstrCommand As String, ByVal lpstrReturnString As String, _
    ByVal uReturnLength As UInteger, ByVal hWndCallback As UInteger) As Long
Const SND_ASYNC As Integer = &H1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    sndPlaySound("chord", SND_ASYNC)
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    mciSendString("close temp_alias", Nothing, 0, 0)
    mciSendString("open ""E:\音乐\周杰伦-东风破.mp3"" alias temp_alias", Nothing, 0, 0)
    mciSendString("play temp_alias repeat", Nothing, 0, 0)
End Sub

[ZengHD]

原来LZ的头像是基德啊

[霜寒月冷]

[Quote=引用 3 楼 zswang 的回复:]
C# codeusing System.Runtime.InteropServices;

public static uint SND_ASYNC = 0x0001; // play asynchronously
public static uint SND_FILENAME = 0x00020000; // name is file name
[DllImport("winmm.dll")]
public static extern uint mciSendString(string lpstrCommand,
string lpstrReturnString, uint uReturnLength, uint hWndCallback);

private void button1_Click(object sender, EventArgs e)
…
[/Quote]
厉害,我也来试试看!呵呵

[霜寒月冷]

试了下,好像没有声音了的啊

[霜寒月冷]

刚刚点错按钮额,呵呵,真的是重复播放的额啊!!

[shuchong0707]

如果我想通过音乐停止播放这个事件来实现窗体切换,可以吗?就是说,每一个窗体都有一首音乐,每一个窗体的音乐一旦播放完就自动切换到下一个窗体,可以吗?

[shuchong0707]

对了,请问一楼的,那个状态改变事件是什么?

[jingang123gz]

C# 读取某一固定目录下的所有音频和视频文件，随机连续播放，放完一个音频或视频接着放下一个
怎么实现啊？请高手帮忙!

//Opacity
//存储音频或视频路径
//string MUSpath=null;

//读取当前目录名
string currentDir = Directory.GetCurrentDirectory();

//以此为根目录,读取MUSIC下面的文件,存储到字符串数组MUSFiles
string[] MUSFiles=Directory.GetFiles(currentDir+"\\MUSIC\\".ToString());

//以MUSIC下面的文件个数为上限,从0开始产生随机数
//将产生的随机数作为字符串数组MUSFiles下标,
//通过此下标来指定要显示的文件名
Random r=new Random ();

//播放获取的音频或视频文件
.......................请帮忙.............

[Houkey]

谢谢3楼

[Houkey]

谢谢3楼

[anshuiyuer]

我要看代码!!!

[LoveTXJ1988]

[Quote=引用 3 楼 zswang 的回复:]
C# code
using System.Runtime.InteropServices;

public static uint SND_ASYNC = 0x0001; // play asynchronously
public static uint SND_FILENAME = 0x00020000; // name is file name
[DllImport("winmm……
[/Quote]
怎么实现暂停啊？

[梦翰斌纷]

不错，学习了……

[majkl]

回帖看三楼

[Rich_man]

刚学，学习一下！

[八叔]

[Quote=引用 2 楼 的回复:]
添加引用 quartz.dll
C# code
void playmusic()
{
string mp3File=Application.StartupPath+"\\mp3\\你若成风.mp3";
QuartzTypeLib.FilgraphManager graphManager=new QuartzTypeLib.FilgraphManager ;
……
[/Quote]
使用quartz.dll(DX提供的一个音频解码类),然后在播放结束事件中,再次调用 mycontrol.Run() 就可实现循环播放了
请问这个“播放结束事件”怎么写？