Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Wind Speed
WINDOBJECT_STRENGTHParameter: Turbulence
WINDOBJECT_TURBULENCEParameter: Turbulence Scale
WINDOBJECT_TURBULENCE_SCALEParameter: Turbulence Frequency
WINDOBJECT_TURBULENCE_FREQUENCYParameter: PARTICLEBASE_MODE
PARTICLEBASE_MODE