vb.netmp3 vb temp

vb.net制作 mp3播放器

用VB制作一个简单的MP3播放器

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用VB制作一个简单的MP3播放器利用API函数[mciSendString]可以轻松实现MP3音乐文件的播放。下面这段程序实现了MP3播放的大部分常规操作，对其稍加修改，做一个100KB大小的MP3播放器轻而易举

启动VB程序，在窗体上放置6个命令按钮，三个标签，一个公用对话框、一个进度条、一个状态栏和一个计时器，窗本的布置请参考附图按钮"Open MP3 File"是用来打开对话框选择MP3文件，其他5个按钮分别为Play(播放)、Pause(暂停)、Stopplay(停止播放)、Back(向后跳跃)、Prew(向前跳跃)。Label1用来表示歌曲当前时间；label2放在时度条的最左边，Caption属性为"00：00"；lable3放在时度条的右边，用来表示歌曲总长。下面就可以编写代码了。首先在窗体的"通用声明"部分声明函数

Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA"(Byval lpstrCommand As String,ByVal lpstrRetumString As String,ByVal uReturnLength As long,ByVal hwndCallback as long) As longDim mfn As String

下面就是各个对象的代码了：

Private Sub Form_load()

mfn=""

play.Enabled=False

pause.Enabled=False

Stopplay.Enabled=False

back.Enabled=False

prew.Enabled=False

Timer1.Enabled=False

Timer1.Interval=500

End SubPrivate Sub open_Click()

On Error Goto err

With CommonDialog1

.CancelError=True

.Filter="音乐文件|*.mp3;*.wav;*.mid"

.Flags=cdlOFNNoChangeDir And cdlOFNPathMustExist

.Action=1

stopplay_Click '停止按钮同时可以设备初始化

mfn=.FileName '这个程序中文件名一定不能带空格

Form1.Caption=.FileName

play.Enabled=True

End With

play_Click

Exit Sub

err:

End SubPrivate Sub play_Click()

On Error Resume Next

Dim t As Long

t=mciSendString("open " + mfn,0,0,0) 'Open后边的空格一定不能丢

Dim ret As String * 128

t=mciSendString("status " + mfn + " length",ret,128,0)

'显示歌曲总长

ret=Left(ret,8)

If ret"" Then

ProgressBar1.Min=0

ProgressBar1.Max=Val(ret)

Label3.Caption=gettime(Val(ret))

End If

play.Enabled=False

pause.Enabled=True

stopplay.Enabled=True

back.Enabled=True

prew.Enabled=True

t=mciSendString("status " + mfn +" mode",ret,128,0)

'得到设备的当前状态，是播放还是暂停等等

ret=Left(ret,8)

StatusBar1.Panels(1).text=ret

'在状态栏显示播放状态

t=mciSendString("play " + mfn + " form " + Str(ProgressBar1.Value),0,0,0)

'开始播放

Timer1.Enabled=True

End Sub

Private Sub pause_Click()

t%=mciSendString("pause " + mfn,0,0,0)

'发出暂停的命令

play.Enable=True

pause.Enabled=False

stopplay.Enabled=True

back.Enabled=False

prew.Enabled=False

End Sub

Private Sub stopplay_Click()

t%=mciSendString("stop " + mfn,0,0,0)

t%=mciSendString("close " + mfn,0,0,0)

'停止播放

play.Enabled=True

pause.Enabled=False

stopplay.Enabled=False

back.Enabled=False

prew.Enabled=False

End Sub

Private Sub back_Click()

t%=mciSendString("play " + mfn + " from " + Str(ProgressBar1.Value-(ProgressBar1.Max\10)),0,0,0) '向后跳一小段再播放

End Sub

Private Sub prew_Click()

t%=mciSendString("play " + mfn + " from " + Stri(ProgressBar1.Value+(ProgressBar1.Max\10)),0,0,0) '向前跳一小段再播放

End Sub

Private Sub Timer1_Timer()

Dim t As Long

Dim ret As String * 128

t=mciSendString("status " + mfn + " position",ret,0,0)

'得到当前播放位置

ret=left(ret,8)

ProgressBar1.Value=Val(ret)

Label1.Caption=gettime(Val(ret))

'显示歌曲当前时间

If ProgressBar1.Value=ProgressBar1.Max Then

stopplay_Click

End If

t=mciSendString("status " + mfn + " mode",ret,128,0)

ret=Left(ret,8)

StatusBar1.Panels(1).Text=ret

End SubPrivate Sub Form_Unload(Cacel As Integer)

t%=mciSendString("stop " + mfn,0,0,0)

t%=mciSendString("close " + mfn,0,0,0)

End SubPrivate Function Gettime(position As Long) As String

'这个函数的功能是把以长整型表示的时间转换为电子钟式的"**:**"

Dim min,sec

min=position/1000

min=min/60

sec=min-Int(min)

min=Int(min)

sec=60 * sec / 100

sec=Int(sec * 100)

gettime=Str(min) + ":" + Str(sec)

End Function

使用VB.NET制作带歌词显示的mp3播放器

Public Class Form1

Dim soundname As String()

Dim i As Integer

Dim j, l As Boolean

Dim k As Integer

Dim filename As String '取歌曲的名字

Dim path As String()

Dim s, m As Integer

Dim luj As String

Dim count As Integer '用来声明选择歌曲的数目

Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click

selectsound()

End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim g As Graphics

g = Graphics.FromHwnd(Me.Handle)

Dim mfont As New Font("宋体", 20)

Dim mstringformat As New StringFormat

mstringformat.Alignment = StringAlignment.Center

mstringformat.LineAlignment = StringAlignment.Center

g.DrawString("X071616", mfont, Brushes.Black, 75, 328, mstringformat)

If ListBox1.Items.Count = 0 Then selectsound() : Exit Sub

playsound()

End Sub

Private Sub TrackBar1_Scroll(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TrackBar1.Scroll

Me.AxWindowsMediaPlayer1.settings.volume = TrackBar1.Value

End Sub

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click

If Timer1.Enabled = False Then

Timer1.Enabled = True

Else

Timer1.Enabled = False

End If

If i = 0 Then

Me.AxWindowsMediaPlayer1.Ctlcontrols.pause()

i = 1

Button3.Text = "继续"

Exit Sub

End If

If i = 1 Then

Me.AxWindowsMediaPlayer1.Ctlcontrols.play()

Button3.Text = "暂停"

i = 0

Exit Sub

End If

End Sub

Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click

j = True

playsound()

End Sub

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click

Me.AxWindowsMediaPlayer1.Ctlcontrols.stop()

End Sub

Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

Dim string1, ss, sss As String

string1 = ListBox1.SelectedItem.ToString.Substring(ListBox1.SelectedItem.ToString.LastIndexOf("\") + 1)

filename = string1.Substring(0, string1.LastIndexOf("."))

luj = ListBox1.SelectedItem.ToString.Substring(0, ListBox1.SelectedItem.ToString.LastIndexOf(".")) + ".lrc"

Me.HScrollBar1.Value = Me.AxWindowsMediaPlayer1.Ctlcontrols.currentPosition / (Me.AxWindowsMediaPlayer1.currentMedia.duration + 0.001) * 1000

ss = Me.AxWindowsMediaPlayer1.Ctlcontrols.currentPositionString

Me.Label1.Text = ss

If Dir(luj) Nothing Then

Dim fr As System.IO.StreamReader = New System.IO.StreamReader(luj, System.Text.Encoding.Default)

sss = fr.ReadLine '我们读取的第一行歌词

While (sss "")

If (sss.LastIndexOf(ss) -1) Then '时间匹配了歌词中的时间

Me.TextBox1.Text = sss.Substring(sss.LastIndexOf("]") + 1)

Form2.TextBox1.Text = Me.TextBox1.Text

End If

sss = fr.ReadLine

End While

Else

TextBox1.Text = "Not Find! 请从网上下载歌词！"

Form2.TextBox1.Text = "Not Find! 请从网上下载歌词！"

End If

Label1.Text = "当前进度:" + Me.AxWindowsMediaPlayer1.Ctlcontrols.currentPositionString

End Sub

Private Sub HScrollBar1_Scroll(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ScrollEventArgs) Handles HScrollBar1.Scroll

Me.AxWindowsMediaPlayer1.Ctlcontrols.currentPosition = Me.HScrollBar1.Value / 1000 * Me.AxWindowsMediaPlayer1.currentMedia.duration

End Sub

Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click

Me.AxWindowsMediaPlayer1.Ctlcontrols.fastForward()

End Sub

Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click

Me.AxWindowsMediaPlayer1.Ctlcontrols.fastReverse()

End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

i = 0

j = False

l = False

Label2.Text = "歌曲名： "

Label3.Text = "歌曲演唱者： "

Label4.Text = "歌曲描述： "

Label5.Text = "歌曲类型： "

Label6.Text = "歌曲大小： "

Button8.Enabled = False

End Sub

Private Sub ListBox1_DoubleClick(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.DoubleClick

Me.AxWindowsMediaPlayer1.URL = ListBox1.Items(ListBox1.SelectedIndex)

Me.AxWindowsMediaPlayer1.Ctlcontrols.play()

Label2.Text = "歌曲名： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Title")

Label3.Text = "歌曲演唱者： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Author")

Label4.Text = "歌曲描述： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Description")

Label5.Text = "歌曲类型： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("FileType")

Label6.Text = "歌曲大小： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("FileSize")

Timer1.Start()

End Sub

Private Sub playsound()

Timer1.Stop()

TrackBar1.Value = Me.AxWindowsMediaPlayer1.settings.volume

If j = False Then

Me.AxWindowsMediaPlayer1.URL = ListBox1.Items(ListBox1.SelectedIndex)

ElseIf j = True Then

k = (ListBox1.SelectedIndex + 1) Mod soundname.Length

Me.AxWindowsMediaPlayer1.URL = ListBox1.Items(k)

j = False

End If

ListBox1.SelectedIndex = k

Me.AxWindowsMediaPlayer1.Ctlcontrols.play()

Label2.Text = "歌曲名： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Title")

Label3.Text = "歌曲演唱者： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Author")

Label4.Text = "歌曲描述： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Description")

Label5.Text = "歌曲类型： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("FileType")

Label6.Text = "歌曲大小： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("FileSize")

Timer1.Start()

End Sub

Private Sub selectsound()

Dim open As New OpenFileDialog

Dim i As Integer

With open

.Filter = "所有mp3文件(*.mp3)|*.mp3|所有wma文件(*.wma)|*.wma"

.Multiselect = True

.Title = "请选择歌曲"

End With

If (open.ShowDialog = Windows.Forms.DialogResult.OK) Then

soundname = open.FileNames

For i = 0 To soundname.GetUpperBound(0)

ListBox1.Items.Add(soundname(i))

ListBox1.SelectedIndex = 0

End If

End Sub

Private Sub AxWindowsMediaPlayer1_PlayStateChange(ByVal sender As System.Object, ByVal e As AxWMPLib._WMPOCXEvents_PlayStateChangeEvent) Handles AxWindowsMediaPlayer1.PlayStateChange

If AxWindowsMediaPlayer1.playState = WMPLib.WMPPlayState.wmppsMediaEnded Then

j = True

Timer2.Start()

End If

End Sub

Private Sub Timer2_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer2.Tick

playsound()

Timer2.Stop()

End Sub

Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click

Timer1.Stop()

If ListBox1.SelectedIndex = 0 Then

Me.AxWindowsMediaPlayer1.URL = ListBox1.Items(soundname.Length - 1)

ListBox1.SelectedIndex = (soundname.Length - 1)

Else

Me.AxWindowsMediaPlayer1.URL = ListBox1.Items((ListBox1.SelectedIndex Mod soundname.Length) - 1)

ListBox1.SelectedIndex = (ListBox1.SelectedIndex Mod soundname.Length) - 1

End If

Me.AxWindowsMediaPlayer1.Ctlcontrols.play()

Label2.Text = "歌曲名： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Title")

Label3.Text = "歌曲演唱者： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Author")

Label4.Text = "歌曲描述： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("Description")

Label5.Text = "歌曲类型： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("FileType")

Label6.Text = "歌曲大小： " + Me.AxWindowsMediaPlayer1.currentMedia.getItemInfo("FileSize")

Timer1.Start()

End Sub

Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click

Form2.Show()

End Sub

End Class

vb.net中如何控制MP3播放

先定义api函数

Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrRetumString As String, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long

Private Sub mnu_Music_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnu_Music.Click

mciSendString("open c:\1.mp3 alias mp3", Nothing, 0, IntPtr.Zero)

mciSendString("Play mp3", Nothing, 0, IntPtr.Zero)

End Sub

上面2行代码就可以播放了，测试通过。

就是没有其它功能，自己加上吧，

如：关闭 mciSendString("close mp3",Nothing,0,intPtr.Zero)

等等

如何在VB.NET中调用MP3播放器

工具栏里选择"添加,删除组件"

选择com组件

选择"Windows Media Player "

然后在界面上加入这个组件

代码

Private Sub Button1_Click(ByVal sender As System.Object, _

ByVal e As System.EventArgs) _

Handles Button1.Click

Const DATA_FILE_EXTENSION As String = ".mp3"

Dim dlgFileDialog As New OpenFileDialog

With dlgFileDialog

.Filter = DATA_FILE_EXTENSION _

" files (*" DATA_FILE_EXTENSION "|*" DATA_FILE_EXTENSION

.FilterIndex = 1

.RestoreDirectory = True

If .ShowDialog() = DialogResult.OK Then

'Play the sound file

Me.AxWindowsMediaPlayer1.URL = dlgFileDialog.FileName

End If

End With

End Sub

参考资料中可以看到很详细的步骤

vb.net 中如何实现播放mp3文件

在.NET里，没有托管的音乐播放器，用API只能播放WAV格式，对于MP3等形式的音频文件，就要依赖于其他控件了，常用的就是

MediaPlayer。使用方法：

在工具箱上点右键，选择“选择项目(Choose

Items)”，切到COM选项卡，找到

Windows

Media

Player，

勾选，确定

在t工具箱上，把刚才加入的MediaPlayer控件，拖放到窗体上

代码：

WindowsMediaPlayer1.URL

"mp3文件路径，支持网络路径"

WindowsMediaPlayer1.Ctlcontrols.play

基本就OK了，至于其他的操作诸如下一曲上一曲暂停停止，直接看

WindowsMediaPlayer1.Ctlcontrols.

里面的方法吧。

vb.net Mp3播放器问题

这是我的代码：

CommonDialog1.ShowOpen

WindowsMediaPlayer1.URL = CommonDialog1.FileName

'这只是打开文件的代码哦

--------------------------------------------------------------------------------------------------

控制播放器的代码：

WindowsMediaPlayer1.play'控制播放器开始播放

WindowsMediaPlayer1.stop'控制播放器暂停播放

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vb.netmp3 vb temp

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vb.net 中如何实现播放mp3文件