用VB制作一个简单的MP3播放器

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 Sub

Private Sub Form_Unload(Cacel As Integer)
t%=mciSendString("stop " + mfn,0&,0,0)
t%=mciSendString("close " + mfn,0&,0,0)
End Sub

Private 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