Microsoft Windows CE 3.0  

WAV_IOControl

Important:
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This function is the Device I/O control routine for the WAV I/O device.

BOOL WAV_IOControl(
DWORD
dwOpenData, 
DWORD
dwCode, 
PBYTE
pBufIn, 
DWORD
dwLenIn, 
PBYTE
pBufOut, 
DWORD
dwLenOut, 
PDWORD
pdwActualOut
);

Parameters

dwOpenData
Specifies a value returned from a call to the WAV_Openfunction.
dwCode
Specifies an I/O control code for this function to be performed. This function supports only one I/OCTL value, IOCTL_WAV_MESSAGE.
pBufIn
Pointer to the MMDRV_MESSAGE_PARAMSinput parameter structure.
dwLenIn
Specifies the size, in bytes, of input parameter structure ( sizeof( MMDRV_MESSAGE_PARAMS)).
pBufOut
Pointer to the return value ( DWORD).
dwLenOut
Specifies the size of the return value variable ( sizeof( DWORD)).
pdwActualOut
Not used.

Return Values

TRUE indicates success. FALSE indicates failure.

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.