AcRxObject AcGiDrawable AcHeapOperators AcDbObject AcDbFilter AcDbLayerFilter
class AcDbLayerFilter : public AcDbFilter;
dblyfilt.h
This class is a list of layers that need to have their corresponding entity lists traversed during filtered block traversal. The newIterator() method does return a pointer to a valid AcDbFilteredBlockIterator object. These objects are optionally saved in the drawing for purposes of xref demand loading efficiency.
AcDbFilter