waveInProc

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This function is the callback function used with the waveform-audio input device. This function is a placeholder for the application-defined function name. The address of this function can be specified in the callback-address parameter of the waveInOpen function.


void CALLBACK waveInProc(
  HWAVEIN hwi,
  UINT uMsg,
  DWORD dwInstance,
  DWORD dwParam1,
  DWORD dwParam2
);

hwi

Handle to the waveform-audio device associated with the callback function.

uMsg

Waveform-audio input message. It can be one of the messages shown in the following table.

Message Description

WIM_CLOSE

Sent when the device is closed using the waveInClose function.

WIM_DATA

Sent when the device driver is finished with a data block sent using the waveInAddBuffer function.

WIM_OPEN

Sent when the device is opened using the waveInOpen function.

dwInstance

User instance data specified with waveInOpen.

dwParam1

Message parameter.

dwParam2

Message parameter.

Applications should not call any system-defined functions from inside a callback function, except for EnterCriticalSection, LeaveCriticalSection, OutputDebugString, PostMessage, PostThreadMessage, and SetEvent. Calling other wave functions will cause deadlock.

Headermmsystem.h
Librarycoredll.lib
Windows Embedded CEWindows CE 2.0 and later
Windows MobileWindows Mobile Version 5.0 and later

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