Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See page_maxonapi_getting_started_foundations_cinema_parameters.
Parameter: Path
REDSHIFT_FILE_PATH
Parameter: Layer
REDSHIFT_FILE_LAYER
Parameter: Color Space
REDSHIFT_FILE_COLORSPACE
Parameter: Animation
REDSHIFT_FILE_ANIMATION_MODE
Parameter: Range Start
REDSHIFT_FILE_ANIMATION_RANGE_START
Parameter: Range End
REDSHIFT_FILE_ANIMATION_RANGE_END
Parameter: Loops
REDSHIFT_FILE_ANIMATION_LOOP_COUNT
Parameter: Start Frame
REDSHIFT_FILE_ANIMATION_FRAME_START
Parameter: End Frame
REDSHIFT_FILE_ANIMATION_FRAME_END
Parameter: Frame Rate
REDSHIFT_FILE_ANIMATION_FRAME_RATE
Parameter: Start Offset
REDSHIFT_FILE_ANIMATION_FRAME_OFFSET
Parameter: Timing
REDSHIFT_FILE_ANIMATION_TIMING_MODE