Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: ID_CA_WEIGHT_TAG_SET_BUTTON
ID_CA_WEIGHT_TAG_SET_BUTTON
Parameter: ID_CA_WEIGHT_TAG_RESET_BUTTON
ID_CA_WEIGHT_TAG_RESET_BUTTON
Parameter: Weight
ID_CA_WEIGHT_TAG_TOTALWEIGHT
Parameter: Speedy Gonzales
ID_CA_WEIGHT_TAG_SPEEDY_GONZALES
Parameter: Vertex Map
ID_CA_WEIGHT_TAG_JOINT_MAP