Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Wind Speed
WINDOBJECT_STRENGTH
Parameter: Turbulence
WINDOBJECT_TURBULENCE
Parameter: Turbulence Scale
WINDOBJECT_TURBULENCE_SCALE
Parameter: Turbulence Frequency
WINDOBJECT_TURBULENCE_FREQUENCY
Parameter: PARTICLEBASE_MODE
PARTICLEBASE_MODE