Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Weight
FRAG_GRAD
Parameter: Threshold
FRAG_THRESH
Parameter: Variation
FRAG_VAR
Parameter: From to
FRAG_FROMTO
Parameter: Type
FRAG_TYPE
Parameter: Angle
FRAG_SANGLE
Parameter: Radius
FRAG_SRAD
Parameter: Count
FRAG_COUNT
Parameter: No Fragments
FRAG_NOFRAG
Parameter: Alignment Correction
FRAG_ALIGNC
Parameter: Thickness
FRAG_THICK
Parameter: Life Span
FRAG_LIFE
Parameter: Variation
FRAG_LIFEVAR
Parameter: Speed
FRAG_SPEED
Parameter: Variation
FRAG_SPEEDVAR
Parameter: Remaining Type
FRAG_RTYPE
Parameter: Thickness
FRAG_RTHICK
Parameter: Die after Fragmentation
FRAG_DELP
Parameter: On
IN_FRAG_ON
Parameter: Animation Time
IN_FRAG_ATIME
Parameter: Particle Count
OUT_FRAG_PARTICLECOUNT
Parameter: Particle Number
OUT_FRAG_PARTICLENUM