Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Teeth
PRIM_COGWHEEL_TEETH
Parameter: Legacy Mode
PRIM_COGWHEEL_LEGACY_MODE
Parameter: Show Guides
PRIM_COGWHEEL_SHOW_GUIDES
Parameter: Guide Color
PRIM_COGWHEEL_GUIDE_COLOR
Parameter: Inner Radius
PRIM_COGWHEEL_IRAD
Parameter: Middle Radius
PRIM_COGWHEEL_MRAD
Parameter: Outer Radius
PRIM_COGWHEEL_ORAD
Parameter: Bevel
PRIM_COGWHEEL_BEVEL
Parameter: Type
PRIM_COGWHEEL_TOOTH_TYPE
Parameter: Teeth
PRIM_COGWHEEL_TEETH2
Parameter: Lock Radius
PRIM_COGWHEEL_LOCK_RADIUS_FOR_TEETH
Parameter: Orientation
PRIM_COGWHEEL_TEETH_ORIENTATION
Parameter: Undercut
PRIM_COGWHEEL_UNDERCUT
Parameter: Root Radius
PRIM_COGWHEEL_ROOT_RADIUS
Parameter: Addendum Radius
PRIM_COGWHEEL_ADDENDUM_RADIUS
Parameter: Pitch Radius
PRIM_COGWHEEL_PITCH_RADIUS
Parameter: Module
PRIM_COGWHEEL_MODULE
Parameter: Diametral Pitch
PRIM_COGWHEEL_DIAMETRAL_PITCH
Parameter: Dedendum
PRIM_COGWHEEL_DEDENDUM
Parameter: Pressure Angle
PRIM_COGWHEEL_PRESSURE_ANGLE
Parameter: Radial Ratio
PRIM_COGWHEEL_RADIAL_RATIO
Parameter: Witness Ratio
PRIM_COGWHEEL_WITNESS_RATIO
Parameter: Undercut Ratio
PRIM_COGWHEEL_UNDERCUT_RATIO
Parameter: Type
PRIM_COGWHEEL_INLAY_TYPE
Parameter: Orientation
PRIM_COGWHEEL_INLAY_ORIENTATION
Parameter: Invert
PRIM_COGWHEEL_INLAY_INVERT
Parameter: Holes
PRIM_COGWHEEL_HOLES_COUNT
Parameter: Radius
PRIM_COGWHEEL_HOLES_RADIUS
Parameter: Ring Radius
PRIM_COGWHEEL_HOLES_DISTANCE
Parameter: Arc
PRIM_COGWHEEL_HOLES_ARC
Parameter: Spokes
PRIM_COGWHEEL_SPOKES_COUNT
Parameter: Outer Radius
PRIM_COGWHEEL_SPOKES_OUTER_RADIUS
Parameter: Inner Radius
PRIM_COGWHEEL_SPOKES_INNER_RADIUS
Parameter: Outer Width
PRIM_COGWHEEL_SPOKES_OUTER_WIDTH
Parameter: Inner Width
PRIM_COGWHEEL_SPOKES_INNER_WIDTH
Parameter: Bevel
PRIM_COGWHEEL_SPOKES_BEVEL
Parameter: Arches
PRIM_COGWHEEL_ARCHES_COUNT
Parameter: Outer Radius
PRIM_COGWHEEL_ARCHES_OUTER_RADIUS
Parameter: Inner Radius
PRIM_COGWHEEL_ARCHES_INNER_RADIUS
Parameter: Arc Fraction
PRIM_COGWHEEL_ARCHES_ARC_FRACTION
Parameter: Stretch
PRIM_COGWHEEL_ARCHES_STRETCH
Parameter: Waves
PRIM_COGWHEEL_WAVES_COUNT
Parameter: Outer Radius
PRIM_COGWHEEL_WAVES_OUTER_RADIUS
Parameter: Inner Radius
PRIM_COGWHEEL_WAVES_INNER_RADIUS
Parameter: Frequency
PRIM_COGWHEEL_WAVES_FREQUENCY
Parameter: Amplitude
PRIM_COGWHEEL_WAVES_AMPLITUDE
Parameter: Phase
PRIM_COGWHEEL_WAVES_PHASE
Parameter: Width
PRIM_COGWHEEL_WAVES_WIDTH
Parameter: Center Hole
PRIM_COGWHEEL_CENTER_HOLE
Parameter: Radius
PRIM_COGWHEEL_CENTER_HOLE_RADIUS
Parameter: Cutout
PRIM_COGWHEEL_CUTOUT
Parameter: Depth
PRIM_COGWHEEL_CUTOUT_DEPTH
Parameter: Width
PRIM_COGWHEEL_CUTOUT_WIDTH
Parameter: Cutout Orientation
PRIM_COGWHEEL_CUTOUT_ORIENTATION