Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Width
WRAPOBJECT_WIDTH
Parameter: Height
WRAPOBJECT_HEIGHT
Parameter: Radius
WRAPOBJECT_RADIUS
Parameter: Wrap
WRAPOBJECT_TYPE
Parameter: Longitude Start
WRAPOBJECT_XSANGLE
Parameter: Longitude End
WRAPOBJECT_XEANGLE
Parameter: Latitude Start
WRAPOBJECT_YSANGLE
Parameter: Latitude End
WRAPOBJECT_YEANGLE
Parameter: Movement
WRAPOBJECT_MOVE
Parameter: Scale Z
WRAPOBJECT_ZSCALE
Parameter: Tension
WRAPOBJECT_TENSION
Parameter: Fit to Parent
WRAPOBJECT_FITTOPARENT