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Thread: what's wrong with this code?

  1. #1

    Thread Starter
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    Belgium
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    Angry

    Can someone tell me what's wrong with this code to play an mp3 file. I have found it on this forum with more code but it's always the same. I can't hear anything.


    'this is in a module

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


    'this is on a form with one button

    Private Sub Command1_Click()
    Dim cmdToDo As String
    Dim wat As String, dwReturm As Long

    wat = "C:\My Music\a1\a1brand.mp3"
    cmdToDo = "open " & wat & " type MPEGVideo Alias MP3Play"

    dwReturn = mciSendString(cmdToDo, 0&, 0&, 0&)
    mciSendString "play MP3Play", 0, 0, 0
    End Sub



  2. #2

    Thread Starter
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    Unhappy wrong categorie

    Sorry, I've post it into the wrong categorie

  3. #3
    Guest
    Here is all the code for a basic MP3 Player:

    Code:
    Public Declare Function mciGetErrorString Lib "winmm.dll" Alias "mciGetErrorStringA" (ByVal dwError As Long, ByVal lpstrBuffer As String, ByVal uLength As Long) As Long
    Public Declare Function GetShortPathName Lib "kernel32" Alias "GetShortPathNameA" (ByVal lpszLongPath As String, ByVal lpszShortPath As String, ByVal cchBuffer As Long) As Long
    Public Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long
    Public Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
    Public Declare Function ReleaseCapture Lib "user32" () As Long
    Public Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
    Public Const SWP_NOMOVE = &H2
    Public Const SWP_NOSIZE = &H1
    Public Const HWND_TOPMOST = -1
    Public Const HWND_NOTOPMOST = -2
    Public TheFileName As String
    
    
    
    Public Function IsItPlaying() As Boolean
    Static yn As String * 30
        mciSendString "status MP3Play mode", yn, Len(yn), 0
        IsItPlaying = (Mid$(yn, 1, 7) = "playing")
    End Function
    
    Public Function mp3Play(FileName As String)
    Dim cmdToDo As String * 255
    Dim dwReturn As Long
    Dim ret As String * 128
    
    Dim tmp As String * 255
    Dim lenShort As Long
    Dim ShortPathAndFie As String
        
        If Dir(FileName) = "" Then
            mmOpen = "Error with input file"
            Exit Function
        End If
        lenShort = GetShortPathName(FileName, tmp, 255)
        ShortPathAndFie = Left$(tmp, lenShort)
        glo_hWnd = hwnd
        cmdToDo = "open " & ShortPathAndFie & " type MPEGVideo Alias MP3Play"
        dwReturn = mciSendString(cmdToDo, 0&, 0&, 0&)
    
        If dwReturn <> 0 Then  'not success
            mciGetErrorString dwReturn, ret, 128
            mmOpen = ret
            MsgBox ret, vbCritical
            Exit Function
        End If
        
        mmOpen = "Success"
        mciSendString "play MP3Play", 0, 0, 0
    End Function
    
    Public Function mp3Pause()
        mciSendString "pause MP3Play", 0, 0, 0
    End Function
    
    Public Function mp3Unpause()
        mciSendString "resume MP3Play", 0, 0, 0
    End Function
    
    Public Function mp3Stop() As String
        mciSendString "stop MP3Play", 0, 0, 0
        mciSendString "close MP3Play", 0, 0, 0
    End Function
    
    Public Function PositionInSec()
    Static PIS As String * 30
        mciSendString "set MP3Play time format milliseconds", 0, 0, 0
        mciSendString "status MP3Play position", PIS, Len(PIS), 0
        PositionInSec = Round(Mid$(PIS, 1, Len(PIS)) / 1000)
    End Function
    
    Public Function Position()
    Static P As String * 30
        mciSendString "set MP3Play time format milliseconds", 0, 0, 0
        mciSendString "status MP3Play position", P, Len(P), 0
        sec = Round(Mid$(P, 1, Len(P)) / 1000)
        If sec < 60 Then Position = "0:" & Format(sec, "00")
        If sec > 59 Then
            mins = Int(sec / 60)
            sec = sec - (mins * 60)
            Position = Format(mins, "00") & ":" & Format(sec, "00")
        End If
    End Function
    
    Public Function LengthInSec()
    Static L As String * 30
        mciSendString "set MP3Play time format milliseconds", 0, 0, 0
        mciSendString "status MP3Play length", L, Len(s), 0
        LengthInSec = Round(Val(Mid$(L, 1, Len(L))) / 1000) 'Round(CInt(Mid$(s, 1, Len(s))) / 1000)
    End Function
    
    Public Function Length()
    Static L As String * 30
        mciSendString "set MP3Play time format milliseconds", 0, 0, 0
        mciSendString "status MP3Play length", L, Len(L), 0
        sec = Round(Val(Mid$(L, 1, Len(L))) / 1000) 'Round(CInt(Mid$(l, 1, Len(l))) / 1000)
        If sec < 60 Then Length = "0:" & Format(sec, "00")
        If sec > 59 Then
            mins = Int(sec / 60)
            sec = sec - (mins * 60)
            Length = Format(mins, "00") & ":" & Format(sec, "00")
        End If
    End Function
    
    
    Public Function SeekTo(Second)
        mciSendString "set MP3Play time format milliseconds", 0, 0, 0
        If IsItPlaying = True Then mciSendString "play MP3Play from " & Second, 0, 0, 0
        If IsItPlaying = False Then mciSendString "seek MP3Play to " & Second, 0, 0, 0
    End Function

  4. #4
    New Member
    Join Date
    Jun 2003
    Location
    west yorkshire
    Posts
    4
    the code for the mp3 player might be what im looking for but i cant seem to "Use It"

    how do you invoke this script ??


    regards
    grantboy

  5. #5
    New Member
    Join Date
    Jun 2003
    Location
    west yorkshire
    Posts
    4
    the code for the mp3 player might be what im looking for but i cant seem to "Use It"

    how do you invoke this script ??


    regards
    grantboy

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