Playwave.exe Demonstrates How To Play a Sound File

ID: Q182983

The information in this article applies to:

Microsoft Visual Basic Learning, Professional, and Enterprise Editions for Windows, versions 5.0, 6.0

SUMMARY

PLAYWAVE.EXE is a self-extracting compressed file that demonstrates how to play uncompressed sound files in your Visual Basic program. The sample also displays the wave data graphically. The project also demonstrates how to use some of the multimedia API functions.

MORE INFORMATION

The following files are available for download from the Microsoft Download Center. Click the file names below to download the files:

Playwave.exe

For more information about how to download files from the Microsoft Download Center, please visit the Download Center at the following Web address

http://www.microsoft.com/downloads/search.asp

and then click How to use the Microsoft Download Center.
When you run the self-extracting executable file, the following files are expanded into the Wave Audio Sample directory:

Form1.frm (5Kb)

Form2.frm (4Kb)

Module1.bas (9Kb)

PlayWave.vbp (1Kb)

PlayWave.vbw (1Kb)

Readme.txt - Contains some of the same information as this article.

To Run the Sample Project

Open the project in Visual Basic.

On the Run menu, click Start or press the F5 key to start the program.

From the Main Form, click File to open a common dialog control. Select an uncompressed sound file. The sound file data appears in the WaveForm Picture Form.

To play the file, click Play on the Main form. To play the file from a different starting or ending point, use the scroll bars to set the start or end points and then click play.

NOTE: The sound file is loaded into memory rather than being read from disk. Large sound files can use a significant amount of memory.

REFERENCES

For more information about using the multimedia API functions, please see the following topics in the Platform SDK documentation:

Multimedia Reference

WaveForm Audio

WaveForm Functions

The following functions are used in this sample project. For specific information about these functions, see the Platform SDK documentation:

Memory Management Functions
GlobalAlloc
GlobalLock
GlobalFree Lib

Multimedia Functions
mmioAscend
mmioClose
mmioDescend
mmioDescendParent
mmioOpen
mmioRead
mmioReadFormat
mmioStringToFOURCC

waveOutAddBuffer
waveOutClose
waveOutGetDevCaps
waveOutGetNumDevs
waveOutOpen
waveOutPrepareHeader
waveOutReset
waveOutStart
waveOutStop
waveOutUnprepareHeader
waveOutWrite

Additional query words: kbsample kbVBp500 kbVBp600 kbVBp kbdsd kbDSupport

Keywords : kbfile kbGrpVB
Version : WINDOWS:5.0,6.0
Platform : WINDOWS
Issue type : kbinfo