Q247036: HOWTO: Add Sound to Form Using the Microsoft Multimedia Control

Article: Q247036
Product(s): Microsoft FoxPro
Version(s): WINDOWS:5.0a,6.0
Operating System(s): 
Keyword(s): kbActiveX kbContainer kbCtrl kbvfp500a kbvfp600 kbGrpDSFox kbDSupport kbCodeSnippet
Last Modified: 19-APR-2000

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, versions 5.0a, 6.0 
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SUMMARY
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This article demonstrates how to add sound, or .wav files, to a form.

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

Although you can use the SET BELL TO command to play a waveform file, you do not
have control over the file once it starts. That is, you cannot stop, pause, or
resume the waveform file. By using the Microsoft Multimedia Control version 6,
you can play a waveform file when the form is opened or whenever you wish to add
sound.

Because you have control over the waveform file, it is not necessary to have the
Multimedia control visible. All actions can be controlled through code.

1. In the Tools menu, under Options, click the Controls tab. Click ActiveX
  Controls, scroll down the list and select Microsoft Multimedia Control
  version 6, and then click OK.

2. Create a new form.

3. On the Form Controls toolbar, click the View Classes button, and then select
  ActiveX Controls.

4. Click the Multimedia control and add it to the form.

5. Select the Multimedia control and change the Name property to MCI. Change the
  Visible property to .F.

6. Open the Init event of the Multimedia control and add the following code:

  * Set properties needed by MCI to open.
  THISFORM.MCI.NOTIFY = .T.		&& Pause
  THISFORM.MCI.WAIT = .T.
  THISFORM.MCI.Shareable = .F.
  THISFORM.MCI.DeviceType = "WaveAudio"
  THISFORM.MCI.RecordEnabled = .T.
  THISFORM.MCI.RecordMode = 0
  THISFORM.MCI.StopEnabled = .T.
  THISFORM.MCI.FileName = GETFILE("wav")

  * Open the MCI WaveAudio device.
  THISFORM.MCI.COMMAND = "Open"
  THISFORM.MCI.COMMAND = "Play"

7. Add a Command button and change the caption to "Stop" (without the quotation
  marks).

8. In the click event of the Stop button, add this code:

  IF THIS.CAPTION="Stop"
  	THISFORM.MCI.COMMAND = "Stop"
  	THIS.CAPTION="Restart"
  ELSE
  	THISFORM.MCI.COMMAND = "Play"
  	THIS.CAPTION="Stop"
  ENDIF

9. In the Destroy event of the form, add this code:

  THISFORM.MCI.COMMAND = "Close"

10. Add another Command button and change the caption to "Rewind" (without the
  quotation marks).

11. In the click event of the Rewind button, add this code:

  THISFORM.MCI.COMMAND = "Seek"
  THISFORM.MCI.COMMAND = "Play"

This is just to show how you can replay the waveform file.

Run the form. If you have a valid waveform file, enter the path and name in the
Thisform.MCI.FileName property in the Init event of the control instead of using
the GETFILE() function. Click on the Stop button to stop the waveform file, then
click on the Restart button to resume playing the waveform file at the same
position.
(c) Microsoft Corporation 2000, All Rights Reserved. Contributions by Dean
Christopher, Microsoft Corporation.


Additional query words:

======================================================================
Keywords          : kbActiveX kbContainer kbCtrl kbvfp500a kbvfp600 kbGrpDSFox kbDSupport kbCodeSnippet 
Technology        : kbVFPsearch kbAudDeveloper kbVFP600 kbVFP500a
Version           : WINDOWS:5.0a,6.0
Issue type        : kbhowto

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