###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.) # SDL_IntersectRect Calculate the intersection of two rectangles. ## Header File Defined in [SDL_rect.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_rect.h) ## Syntax ```c SDL_bool SDL_IntersectRect(const SDL_Rect * A, const SDL_Rect * B, SDL_Rect * result); ``` ## Function Parameters | | | | | ---------------------------- | ---------- | -------------------------------------------------------------------------------------------- | | const [SDL_Rect](SDL_Rect) * | **A** | an [SDL_Rect](SDL_Rect) structure representing the first rectangle. | | const [SDL_Rect](SDL_Rect) * | **B** | an [SDL_Rect](SDL_Rect) structure representing the second rectangle. | | [SDL_Rect](SDL_Rect) * | **result** | an [SDL_Rect](SDL_Rect) structure filled in with the intersection of rectangles `A` and `B`. | ## Return Value ([SDL_bool](SDL_bool)) Returns [SDL_TRUE](SDL_TRUE) if there is an intersection, [SDL_FALSE](SDL_FALSE) otherwise. ## Remarks If `result` is NULL then this function will return [SDL_FALSE](SDL_FALSE). ## Version This function is available since SDL 2.0.0. ## See Also - [SDL_HasIntersection](SDL_HasIntersection) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryRect](CategoryRect)