MM_WOM_SETSECONDARYGAINCLASS
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4/8/2010
This message associates a stream context with an attenuation class. For more information see Attenuation Classes.
Syntax
MM_WOM_SETSECONDARYGAINCLASS
wParam = (DWORD) dwClass
lParam = 0
Parameters
- dwClass
A DWORD value that contains the new attenuation class for the audio stream context. You can set this parameter to 0, 1, 2, or 3. The default attenuation class value for new waveform audio streams is 0.
- lParam
Not used. Set to 0.
Remarks
When you send this message, you must provide a handle to the waveform audio stream in your call to waveOutMessage.
Return Value
None.
Requirements
| Header | audiosys.h |
| Windows Embedded CE | Windows Embedded CE 6.0 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later |
See Also
Reference
Waveform Audio Messages
waveOutMessage