Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Mode
MGMOSPLINEOBJECT_MODE
Parameter: Grow Mode
MGMOSPLINEOBJECT_GROWMODE
Parameter: Start
MGMOSPLINEOBJECT_GROWTH_START
Parameter: End
MGMOSPLINEOBJECT_GROWTH_END
Parameter: Offset
MGMOSPLINEOBJECT_GROWTH_OFFSET
Parameter: Extend Start
MGMOSPLINEOBJECT_EXTEND_EXTEND_START
Parameter: Curve
MGMOSPLINEOBJECT_EXTEND_CURVE_START
Parameter: Scaling
MGMOSPLINEOBJECT_EXTEND_SCALE_START
Parameter: Spiral
MGMOSPLINEOBJECT_EXTEND_SPIRAL_START
Parameter: Spiral Scale
MGMOSPLINEOBJECT_EXTEND_STEP_START
Parameter: Smoothed
MGMOSPLINEOBJECT_EXTEND_SMOOTHED_START
Parameter: Extend End
MGMOSPLINEOBJECT_EXTEND_EXTEND_END
Parameter: Curve
MGMOSPLINEOBJECT_EXTEND_CURVE_END
Parameter: Scaling
MGMOSPLINEOBJECT_EXTEND_SCALE_END
Parameter: Spiral
MGMOSPLINEOBJECT_EXTEND_SPIRAL_END
Parameter: Spiral Scale
MGMOSPLINEOBJECT_EXTEND_STEP_END
Parameter: Smoothed
MGMOSPLINEOBJECT_EXTEND_SMOOTHED_END
Parameter: Destination Spline
MGMOSPLINEOBJECT_DEST_SPLINE
Parameter: Destination X Rail
MGMOSPLINEOBJECT_DEST_RAILX
Parameter: Destination Y Rail
MGMOSPLINEOBJECT_DEST_RAILY
Parameter: Destination Polygon
MGMOSPLINEOBJECT_DEST_POLY
Parameter: Display Mode
MGMOSPLINEOBJECT_DISPLAYMODE
Parameter: Length
MGMOSPLINEOBJECT_LENGTH
Parameter: Length Spline
MGMOSPLINEOBJECT_LENGTH_SPLINE
Parameter: Length Formula
MGMOSPLINEOBJECT_LENGTH_FORMULA
Parameter: Steps
MGMOSPLINEOBJECT_STEPS
Parameter: Segments
MGMOSPLINEOBJECT_SEGMENTS
Parameter: Angle H
MGMOSPLINEOBJECT_ANGLE_H
Parameter: Angle H Spline
MGMOSPLINEOBJECT_ANGLE_H_SPLINE
Parameter: Angle H Formula
MGMOSPLINEOBJECT_ANGLE_H_FORMULA
Parameter: Angle P
MGMOSPLINEOBJECT_ANGLE_P
Parameter: Angle P Spline
MGMOSPLINEOBJECT_ANGLE_P_SPLINE
Parameter: Angle P Formula
MGMOSPLINEOBJECT_ANGLE_P_FORMULA
Parameter: Angle B
MGMOSPLINEOBJECT_ANGLE_B
Parameter: Angle B Spline
MGMOSPLINEOBJECT_ANGLE_B_SPLINE
Parameter: Angle B Formula
MGMOSPLINEOBJECT_ANGLE_B_FORMULA
Parameter: Curvature Order
MGMOSPLINEOBJECT_CURVATURE_ORDER
Parameter: Curve
MGMOSPLINEOBJECT_CURVE
Parameter: Curve Spline
MGMOSPLINEOBJECT_CURVE_SPLINE
Parameter: Curve Formula
MGMOSPLINEOBJECT_CURVE_FORMULA
Parameter: Curve Minimum
MGMOSPLINEOBJECT_CURVE_STRENGTHMIN
Parameter: Curve Maximum
MGMOSPLINEOBJECT_CURVE_STRENGTHMAX
Parameter: Curve Maintain Angle
MGMOSPLINEOBJECT_CURVE_MAINTAIN
Parameter: Curve Global Space
MGMOSPLINEOBJECT_CURVE_GLOBAL
Parameter: Bend
MGMOSPLINEOBJECT_BEND
Parameter: Bend Spline
MGMOSPLINEOBJECT_BEND_SPLINE
Parameter: Bend Formula
MGMOSPLINEOBJECT_BEND_FORMULA
Parameter: Bend Minimum
MGMOSPLINEOBJECT_BEND_STRENGTHMIN
Parameter: Bend Maximum
MGMOSPLINEOBJECT_BEND_STRENGTHMAX
Parameter: Bend Maintain Angle
MGMOSPLINEOBJECT_BEND_MAINTAIN
Parameter: Bend Global Space
MGMOSPLINEOBJECT_BEND_GLOBAL
Parameter: Twist
MGMOSPLINEOBJECT_TWIST
Parameter: Twist Spline
MGMOSPLINEOBJECT_TWIST_SPLINE
Parameter: Twist Formula
MGMOSPLINEOBJECT_TWIST_FORMULA
Parameter: Twist Minimum
MGMOSPLINEOBJECT_TWIST_STRENGTHMIN
Parameter: Twist Maximum
MGMOSPLINEOBJECT_TWIST_STRENGTHMAX
Parameter: Twist Maintain Angle
MGMOSPLINEOBJECT_TWIST_MAINTAIN
Parameter: Twist Global Space
MGMOSPLINEOBJECT_TWIST_GLOBAL
Parameter: Width
MGMOSPLINEOBJECT_WIDTH
Parameter: Width Spline
MGMOSPLINEOBJECT_WIDTH_SPLINE
Parameter: Width Formula
MGMOSPLINEOBJECT_WIDTH_FORMULA
Parameter: Premise
MGMOSPLINEOBJECT_TURTLE
Parameter: Context Ignore
MGMOSPLINEOBJECT_TURTLE_CONTEXT_IGNORE
Parameter: Rules
MGMOSPLINEOBJECT_TURTLE_MODIFIER
Parameter: Result String to Console
MGMOSPLINEOBJECT_TURTLE_PRINT
Parameter: Growth
MGMOSPLINEOBJECT_TURTLE_GROWTH
Parameter: Default Angle
MGMOSPLINEOBJECT_TURTLE_BASEANGLE
Parameter: Default Scale
MGMOSPLINEOBJECT_TURTLE_BASESCALE
Parameter: Default Movement
MGMOSPLINEOBJECT_TURTLE_BASEMOVE
Parameter: Tropism
MGMOSPLINEOBJECT_TURTLE_BASETROPISM
Parameter: Randomness
MGMOSPLINEOBJECT_TURTLE_RANDOMISATION
Parameter: Seed
MGMOSPLINEOBJECT_TURTLE_RANDOM_SEED
Parameter: Move Multiplier
MGMOSPLINEOBJECT_TURTLE_ADDMOVE
Parameter: Angle Multiplier
MGMOSPLINEOBJECT_TURTLE_ADDANGLE
Parameter: Scale Multiplier
MGMOSPLINEOBJECT_TURTLE_ADDSCALE
Parameter: Grow Angle
MGMOSPLINEOBJECT_TURTLE_GROWANGLE
Parameter: Grow Scale
MGMOSPLINEOBJECT_TURTLE_GROWSCALE
Parameter: Grow Movement
MGMOSPLINEOBJECT_TURTLE_GROWMOVE
Parameter: Generation Mode
MGMOSPLINEOBJECT_SPLINE_MODE
Parameter: Count
MGMOSPLINEOBJECT_SPLINE_COUNT
Parameter: Step
MGMOSPLINEOBJECT_SPLINE_COUNT_STEP
Parameter: Source Spline
MGMOSPLINEOBJECT_SOURCE_SPLINE
Parameter: Source Rail
MGMOSPLINEOBJECT_SOURCE_RAIL
Parameter: Width
MGMOSPLINEOBJECT_SPLINE_WIDTH
Parameter: Width Spline
MGMOSPLINEOBJECT_SPLINE_WIDTH_SPLINE
Parameter: Width Formula
MGMOSPLINEOBJECT_SPLINE_WIDTH_FORMULA
Parameter: Effectors
MGMOSPLINEOBJECT_EFFECTORLIST
Parameter: Mode
MGMOSPLINEOBJECT_FIELD_MODE
Parameter: Fields
MGMOSPLINEOBJECT_PARTICLEFIELDS