DEFINE_SET_GET_BY_REFERENCE_FUNCTIONS
DEFINE_SET_GET_BY_REFERENCE_FUNCTIONS(BPoint, Point, B_POINT_TYPE);
DEFINE_SET_GET_BY_REFERENCE_FUNCTIONS(BRect, Rect, B_RECT_TYPE);
DEFINE_SET_GET_BY_REFERENCE_FUNCTIONS(BSize, Size, B_SIZE_TYPE);
DEFINE_SET_GET_BY_REFERENCE_FUNCTIONS(BAlignment, Alignment, B_ALIGNMENT_TYPE);