' Modul MP3-Play and Stop via API
Option Explicit
 
Private Declare Function mciSendString Lib "winmm.dll" _
  Alias "mciSendStringA" (ByVal lpszCommand As String, _
  ByVal lpszReturnString As String, _
  ByVal cchReturnLength As Long, _
  ByVal hwndCallback As Long) As Long
 
Private Declare Function GetShortPathName Lib "kernel32" _
  Alias "GetShortPathNameA" (ByVal lpszLongPath As String, _
  ByVal lpszShortPath As String, _
  ByVal cchBuffer As Long) As Long
 
Public Function MP3_Play(ByVal sFile As String, _
  ByVal sAlias As String) As Boolean
 
  Dim bResult As Boolean
 
   Dim sBuffer As String
  Dim lResult As Long
 
'Hier kommt die Fehlermeldung:
 
  [u]sBuffer = Space$(255)  
 
lResult = GetShortPathName(sFile, sBuffer, Len(sBuffer))
 
  If lResult <> 0 Then
    sFile = Left$(sBuffer, InStr(sBuffer, vbNullChar) - 1)
 
       lResult = mciSendString("open " & sFile & _
      " type MPEGVideo alias " & sAlias, 0, 0, 0)
 
    If lResult = 0 Then
           If mciSendString("play " & sAlias & _
        " from 0", 0, 0, 0) = 0 Then
        bResult = True
      End If
    End If
  End If
 
  MP3_Play = bResult
End Function
 
Public Sub MP3_Stop(ByVal sAlias As String)
  mciSendString "stop " & sAlias, 0, 0, 0
  mciSendString "close " & sAlias, 0, 0, 0
End Sub