Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Boolean Type
BOOLEOBJECT_TYPEParameter: High Quality
BOOLEOBJECT_HIGHQUALITYParameter: Create single object
BOOLEOBJECT_SINGLE_OBJECTParameter: Hide new edges
BOOLEOBJECT_HIDE_NEW_EDGESParameter: Create Phong breaks at intersections
BOOLEOBJECT_BREAK_CUT_EDGESParameter: Select intersections
BOOLEOBJECT_SEL_CUT_EDGESParameter: Optimize Points
BOOLEOBJECT_OPTIMIZE_LEVEL