Waveform Audio Messages (Windows Embedded CE 6.0)

  • Article

1/6/2010

Wave application programming interface (API) messages fall into two categories: window messages and callback function messages. The following table shows these messages.

Programming element Description

MM_WIM_CLOSE

This message is sent to a window when a waveform-audio input device is closed.

MM_WIM_DATA

This message is sent to a window when waveform-audio data is present in the input buffer and the buffer is being returned to the application.

MM_WIM_OPEN

This message is sent to a window when a waveform-audio input device is opened.

MM_WOM_ATTENUATED

This message indicates that an audio stream is controlled by an audio gain class.

MM_WOM_CLOSE

This message is sent to a window when a waveform-audio output device is closed.

MM_WOM_DONE

This message is sent to a window when the given output buffer is being returned to the application.

MM_WOM_OPEN

This message is sent to a window when the given waveform-audio output device is opened.

WIM_CLOSE

This message is sent to the given waveInProc callback function when a waveform-audio input device is closed.

WIM_DATA

This message is sent to the given waveInProc callback function when waveform-audio data is present in the input buffer and the buffer is being returned to the application.

WIM_OPEN

This message is sent to a waveInProc callback function when a waveform-audio input device is opened.

WOM_CLOSE

This message is sent to a waveOutProc callback function when a waveform-audio output device is closed.

WOM_DONE

This message is sent to a waveOutProc callback function when the given output buffer is being returned to the application.

WOM_OPEN

This message is sent to a waveOutProc callback function when a waveform-audio output device is opened.

See Also

Reference

Waveform Audio Reference