MIDM_START

This message is sent to a MIDI input driver to begin MIDI input.

Parameters

DWORD dwParam1

Unused.

DWORD dwParam2

Unused.

Return Value

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.

Comments

This message should reset the time stamp to zero. If this message is received after input has been started, the driver should just return MMSYSERR_NOERROR.