DOCUMENT:Q221578  11-JAN-2001  [vbwin]
TITLE   :HOWTO: Play Unix Audio Files (.AU) From Visual Basic
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:6.0
OPER/SYS:
KEYWORDS:kbmm kbActiveX kbVBp kbVBp600 kbGrpDSVB

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Visual Basic Learning Edition for Windows, version 6.0 
 - Microsoft Visual Basic Professional Edition for Windows, version 6.0 
 - Microsoft Visual Basic Enterprise Edition for Windows, version 6.0 
-------------------------------------------------------------------------------

SUMMARY
=======

This article demonstrates how to create a Visual Basic project that plays audio
files with the AU file extension. The project uses the DirectShow run-time file,
Quartz.dll, version 5.1.18.1024 or later. This DirectShow run-time file is
shipped with Internet Explorer 4.01 and Visual Studio 6.0.

MORE INFORMATION
================

This section assumes you are familiar with using objects and references in your
Visual Basic project and that you have a .AU file to use with the project. If
you are not familiar with using objects and references in your Visual Basic
project, see the REFERENCES section of this article.

Steps to Create the Project
---------------------------

1. Start a new Standard EXE project in Visual Basic. Form1 is created by
   default.

2. From the Project menu, select References, and add a reference to the
   DirectShow runtime file, quartz.dll. You may need to Browse for this file in
   your System directory. After you make a reference to this file, the
   ActiveMovie Control type library appears in the Available References list box
   of the References dialog box.

3. Add a CommandButton to Form1.

4. Paste the following code to the Code window of Form1. Change the String
   variable MyFile to the path and filename of your AU file:

   Option Explicit

   Private Sub Command1_Click()
      Static PMC As Object
      Dim MyFile As String

      MyFile = "<Path and Filename of the AU file>"
      Set PMC = New FilgraphManager
      PMC.RenderFile MyFile
      PMC.Run
   End Sub

5. On the Run menu, select Start, or press the F5 key to start the program.
   Click on Command1 and the AU file will start playing.

REFERENCES
==========

For more information on using objects and references in your Visual Basic
project, see the following topics in the Visual Basic Online Help or the MSDN
Web Site:

 - Creating a Reference to an Object
 - Assigning an Object Reference to a Variable
 - Declaring an Object Variable

Additional query words:

======================================================================
Keywords          : kbmm kbActiveX kbVBp kbVBp600 kbGrpDSVB 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVBA600 kbVB600
Version           : WINDOWS:6.0
Issue type        : kbhowto

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 2001.