Microsoft Windows CE 3.0  

WODM_BREAKLOOP

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This message is used in an MMDRV_MESSAGE_PARAMSstructure passed to the WAV_IOControlfunction to request a waveform output driver to break an output loop that was created with a WODM_WRITE message.

Parameters

uDeviceId
Device identifier — 0, 1, 2, and so on — for the target device.
uMsg
Specifies this message.
dwUser
Specifies a device instance identifier.
dwParam1
Not used.
dwParam2
Not used.

Return Values

MMSYSERR_NOERROR indicates success. Otherwise, the driver returns one of the MMSYSERR or WAVERR error values declared in the Mmsystem.h header file.

Remarks

The ACM sends the WODM_BREAKLOOP message by calling the audio driver's WAV_IOControlentry point through the DeviceIoControlfunction.

The driver should stop output of the loop buffers at the end of the next loop iteration.

If the driver receives this message and a loop is not in progress, it returns MMSYSERR_NOERROR.

Requirements

Runs on Versions Defined in Include Link to
Windows CE OS 1.0 and later      
Note   This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.


 Last updated on Tuesday, July 13, 2004

© 2004 Microsoft Corporation. All rights reserved.