Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: MDATA_SCULPTBRUSH_SETTINGS_DRAWMODE
MDATA_SCULPTBRUSH_SETTINGS_DRAWMODE
Parameter: MDATA_SCULPTBRUSH_SETTINGS_BUILDUP
MDATA_SCULPTBRUSH_SETTINGS_BUILDUP
Parameter: MDATA_SCULPTBRUSH_SETTINGS_INVERT
MDATA_SCULPTBRUSH_SETTINGS_INVERT