Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Strength
ID_TDELTAMUSH_WEIGHT
Parameter: Iterations
ID_TDELTAMUSH_SMOOTH_ITERATION
Parameter: Smooth View
ID_TDELTAMUSH_PREV_SMOOTH
Parameter: Tangent Mode
ID_TDELTAMUSH_TANGENT_TYPE
Parameter: Smooth Type
ID_TDELTAMUSH_WEIGHT_TYPE
Parameter: Active
ID_TDELTAMUSH_WEIGHTMAP_ONOFF
Parameter: Strength Map
ID_TDELTAMUSH_WEIGHTMAP
Parameter: Pin Border Points
ID_TDELTAMUSH_PIN_CORNER
Parameter: Affect Morphs
ID_TDELTAMUSH_AFFECTMORPH
Parameter: Initialize
ID_TDELTAMUSH_OBJECT_INITIAL
Parameter: Release
ID_TDELTAMUSH_OBJECT_RESTORE