WODM_RESET

Sent to a waveform output device driver to stop playback of a waveform and return all data blocks in the playback queue to the client.

The return value is an error code, or zero (MMSYSERR_NOERROR) if the operation is successful. Possible error codes are:

MMSYSERR_NOTENABLED

The driver failed to load or initialize.

DWORD dwParam1: Unused.
DWORD dwParam2: Unused.

If the driver is playing or paused, it should stop playback immediately and mark all pending data blocks as done by setting the WHDR_DONE bit in the dwFlags field of the WAVEHDR structure for each block. The driver should then notify the client by using DriverCallback to send a WOM_DONE message for each data block. If playback was paused, the driver should take itself out of the paused state. The driver should reset its position count to zero.