Box2d Box2d Box2d Box2d Box2d Box2d Box2d Box2d Box2d Box2d center contains contains contains contains deflate deflate deflate deflate deflate empty get get get height inflate inflate inflate inflate inflate intersectWith intersectWith isEmpty isEmptyMinus isEqualTo isIntersect isNormalized isNull kIdentity leftBottom leftTop normalize offset offset offset operator & operator &= operator!= operator* operator* operator*= operator*= operator+ operator+ operator+= operator+= operator- operator- operator-= operator-= operator/ operator/= operator== operator| operator|= rightBottom rightTop scaleBy set set set set set set size swapTopBottom unionWith unionWith unionWith unionWith width xmax xmin ymax ymin

get() [3/3] void Box2d::get ( long &  l, long &  t, long &  r, long &  b  ) const 得到四舍五入后的矩形(RECT)，已上下对调 如果本矩形为规范化矩形，则取出的RECT也符合Windows规范化矩形要求， 即 CRect::NormalizeRect() 的结果。 参数 [out] l RECT.left，对应于xmin [out] t RECT.top，对应于ymin [out] r RECT.right，对应于xmax [out] b RECT.bottom，对应于ymax 函数调用图: