Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Simulation
FP_EMITTER_SIMULATION_PRIORITY
Parameter: Enabled
FP_EMITTER_EMISSION_ENABLED
Parameter: Shape
FP_EMITTER_EMISSION_SHAPE
Parameter: Size
FP_EMITTER_EMISSION_SHAPE_SIZE
Parameter: Object
FP_EMITTER_EMISSION_OBJECT_LINK
Parameter: Object Mode
FP_EMITTER_EMISSION_OBJECT_MODE
Parameter: Volume Resolution
FP_EMITTER_EMISSION_OBJECT_VOLUME_RESOLUTION
Parameter: Scatter Mode
FP_EMITTER_EMISSION_SCATTER_MODE
Parameter: Restriction
FP_EMITTER_EMISSION_OBJECT_RESTRICTION
Parameter: Emission Mode
FP_EMITTER_EMISSION_MODE
Parameter: Shot
FP_EMITTER_EMISSION_ONCE_COUNT
Parameter: Rate
FP_EMITTER_EMISSION_CONTINUOUS_RATE
Parameter: Seed
FP_EMITTER_EMISSION_SEED
Parameter: Group
FP_EMITTER_EMISSION_GROUP_LINK
Parameter: Mode
FP_EMITTER_INITIALVELOCITY_MODE
Parameter: Multiplier
FP_EMITTER_INITIALVELOCITY_MULTIPLIER
Parameter: Axis
FP_EMITTER_INITIALVELOCITY_AXISDIRECTION
Parameter: Vector
FP_EMITTER_INITIALVELOCITY_VECTOR
Parameter: Velocity Map
FP_EMITTER_INITIALVELOCITY_MAP
Parameter: Space
FP_EMITTER_INITIALVELOCITY_SPACE
Parameter: Add Emitter Object Velocity
FP_EMITTER_INITIALVELOCITY_OBJECT
Parameter: Mode
FP_EMITTER_COLOR_MODE
Parameter: Color
FP_EMITTER_COLOR_CONSTANT
Parameter: Color Map
FP_EMITTER_COLOR_MAP
Parameter: Multiplier
FP_EMITTER_RADIUS_MULTIPLIER
Parameter: Map
FP_EMITTER_RADIUS_MAP
Parameter: Draw
FP_EMITTER_DRAW