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Waveform Output Driver Messages (Windows CE 5.0)

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The following table shows the waveform output driver messages (WODM_XXX).

Programming element Description
WODM_BREAKLOOP This message is used to request a waveform output driver to break an output loop that was created with a WODM_WRITE message.
WODM_CLOSE This message is used to request a waveform output driver to close a specified stream that was previously opened with a WODM_OPEN message.
WODM_GETDEVCAPS This message is used to request a waveform output driver to return the capabilities of a specified device.
WODM_GETNUMDEVS This message is used to request a waveform output driver to return the number of device instances that it supports.
WODM_GETPITCH This message is used to request a waveform output driver to return the specified device's current pitch multiplier value.
WODM_GETPLAYBACKRATE This message is to request a waveform output driver to return the current playback rate multiplier value for the specified device.
WODM_GETPOS This message is used to return the current position within a stream. The position is relative to the beginning of the waveform.
WODM_GETPROP This message is used to reqest the properties of a waveform ouput driver.
WODM_GETVOLUME This message is used to request a waveform output driver to return the current volume level setting for the specified device or stream.
WODM_OPEN This message is used to request a waveform output driver to open a stream on the specified device.
WODM_PAUSE This message is used to request a waveform output driver to pause playback of a waveform.
WODM_PREPARE This message is used to request a waveform output driver to prepare a system-exclusive data buffer for output.
WODM_RESET This message is used to request a waveform output driver to stop sending output data and return all output buffers to the list.
WODM_RESTART This message is used to request a waveform output driver to continue playback of a waveform after playback has been paused with WODM_PAUSE.
WODM_SETPITCH This message is used to request a waveform output driver to set the specified device's pitch multiplier value.
WODM_SETPLAYBACKRATE This message is used to request a waveform output driver to set the playback rate multiplier value for the specified device.
WODM_SETPROP This message isused to request a waveform output driver to change properties.
WODM_SETVOLUME This message is used to request a waveform output driver to set the playback rate multiplier value for the specified device.
WODM_UNPREPARE This message is used to request a waveform output driver to remove the buffer preparation performed in response to WODM_PREPARE.
WODM_WRITE This message is used to request a waveform output driver to write a waveform data block to the specified device.

See Also

Waveform Input Driver Messages | WPDM Messages | Audio PDD Functions | Waveform Audio Driver Functions | Waveform Audio Driver Structures

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