Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Disconnected Points on Delete
PREF_MODELING_DISCONNECTED_POINTS_ON_DELETE
Parameter: Always Update (Slow)
PREF_SCULPTPREF_ALWAYS_UPDATE
Parameter: Respect Selections
PREF_SCULPTPREF_RESPECT_SELECTIONS
Parameter: Polygon Object Normals Threshold
PREF_SCULPTPREF_DISPLAY_POLYGONOBJECT_NORMALS_THRESHOLD
Parameter: Default Gray Value
PREF_SCULPTPREF_BRUSH_STAMP_GREYVALUE_DEFAULT
Parameter: Use Top Left Pixel For Gray Value
PREF_SCULPTPREF_BRUSH_STAMP_GREYVALUE_TOPLEFTPIXEL
Parameter: Material Resolution
PREF_SCULPTPREF_BRUSH_STAMP_MATERIAL_SAMPLERES
Parameter: Default Gray Value
PREF_SCULPTPREF_BRUSH_STENCIL_GREYVALUE_DEFAULT
Parameter: Use Top Left Pixel For Gray Value
PREF_SCULPTPREF_BRUSH_STENCIL_GREYVALUE_TOPLEFTPIXEL
Parameter: Material Resolution
PREF_SCULPTPREF_BRUSH_STENCIL_MATERIAL_SAMPLERES