Play MPEG-files in VB 6. - Visual Basic , VB.NET

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Play MPEG-files in VB 6. ...
Author: Kristof Torfs
E-mail: Click to e-mail author
Website: http://come.to/bigboyz-2000
Submitted: 9/6/2000
Version: VB6
Compatibility: VB6
Category: Multimedia
Views: 20881
Play MPEG-files in VB 6.
Declarations:
Private Declare Function mciGetErrorString Lib "winmm.dll" Alias "mciGetErrorStringA" (ByVal dwError As Long, ByVal lpstrBuffer As String, ByVal uLength 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 Private 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
Code:
'Default Property Values: Const m_def_FileName = "" 'Property Variables: Dim m_FileName As String 'WARNING! DO NOT REMOVE OR MODIFY THE FOLLOWING COMMENTED LINES! 'MappingInfo=UserControl,UserControl,-1,Enabled Public Property Get Enabled() As Boolean Enabled = UserControl.Enabled End Property Public Property Let Enabled(ByVal New_Enabled As Boolean) UserControl.Enabled() = New_Enabled PropertyChanged "Enabled" End Property 'WARNING! DO NOT REMOVE OR MODIFY THE FOLLOWING COMMENTED LINES! 'MemberInfo=13,0,0, Public Property Get FileName() As String FileName = m_FileName End Property Public Property Let FileName(ByVal New_FileName As String) m_FileName = New_FileName PropertyChanged "FileName" End Property 'Initialize Properties for User Control Private Sub UserControl_InitProperties() m_FileName = m_def_FileName End Sub 'Load property values from storage Private Sub UserControl_ReadProperties(PropBag As PropertyBag) UserControl.Enabled = PropBag.ReadProperty("Enabled", True) m_FileName = PropBag.ReadProperty("FileName", m_def_FileName) End Sub Private Sub UserControl_Terminate() mmStop End Sub 'Write property values to storage Private Sub UserControl_WriteProperties(PropBag As PropertyBag) Call PropBag.WriteProperty("Enabled", UserControl.Enabled, True) Call PropBag.WriteProperty("FileName", m_FileName, m_def_FileName) End Sub Public Function IsPlaying() As Boolean Static s As String * 30 mciSendString "status MPEGPlay mode", s, Len(s), 0 IsPlaying = (Mid$(s, 1, 7) = "playing") End Function Public Function mmPlay() Dim cmdToDo As String * 255 Dim dwReturn As Long Dim ret As String * 128 Dim tmp As String * 255 Dim lenShort As Long Dim ShortPathAndFie As String If Dir(FileName) = "" Then mmOpen = "Error with input file" Exit Function End If lenShort = GetShortPathName(FileName, tmp, 255) ShortPathAndFie = Left$(tmp, lenShort) glo_hWnd = hWnd cmdToDo = "open " & ShortPathAndFie & " type MPEGVideo Alias MPEGPlay Parent " & UserControl.hWnd & " Style 1073741824" 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 mmPlay = "Success" mciSendString "play MPEGPlay", 0, 0, 0 End Function Public Function mmPause() mciSendString "pause MPEGPlay", 0, 0, 0 End Function Public Function mmStop() As String mciSendString "stop MPEGPlay", 0, 0, 0 mciSendString "close MPEGPlay", 0, 0, 0 End Function Public Function PositionInSec() Static s As String * 30 mciSendString "set MPEGPlay time format milliseconds", 0, 0, 0 mciSendString "status MPEGPlay position", s, Len(s), 0 PositionInSec = Round(Mid$(s, 1, Len(s)) / 1000) End Function Public Function Position() Static s As String * 30 mciSendString "set MPEGPlay time format milliseconds", 0, 0, 0 mciSendString "status MPEGPlay position", s, Len(s), 0 sec = Round(Mid$(s, 1, Len(s)) / 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 s As String * 30 mciSendString "set MPEGPlay time format milliseconds", 0, 0, 0 mciSendString "status MPEGPlay length", s, Len(s), 0 LengthInSec = Round(Val(Mid$(s, 1, Len(s))) / 1000) 'Round(CInt(Mid$(s, 1, Len(s))) / 1000) End Function Public Function Length() Static s As String * 30 mciSendString "set MPEGPlay time format milliseconds", 0, 0, 0 mciSendString "status MPEGPlay length", s, Len(s), 0 sec = Round(Val(Mid$(s, 1, Len(s))) / 1000) 'Round(CInt(Mid$(s, 1, Len(s))) / 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 About() frmCtlAbout.Show vbModal, Me End Function Public Function SeekTo(Second) mciSendString "set MPEGPlay time format milliseconds", 0, 0, 0 If IsPlaying = True Then mciSendString "play MPEGPlay from " & Second, 0, 0, 0 If IsPlaying = False Then mciSendString "seek MPEGPlay to " & Second, 0, 0, 0 End Function