###### (This is the legacy documentation for SDL2, the previous stable version; [SDL3](https://wiki.libsdl.org/SDL3/) is the current stable version.) # SDL_GetRelativeMouseState Retrieve the relative state of the mouse. ## Header File Defined in [SDL_mouse.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_mouse.h) ## Syntax ```c Uint32 SDL_GetRelativeMouseState(int *x, int *y); ``` ## Function Parameters | | | | | ----- | ----- | ------------------------------------------------------------------ | | int * | **x** | a pointer filled with the last recorded x coordinate of the mouse. | | int * | **y** | a pointer filled with the last recorded y coordinate of the mouse. | ## Return Value ([Uint32](Uint32)) Returns a 32-bit button bitmask of the relative button state. ## Remarks The current button state is returned as a button bitmask, which can be tested using the `SDL_BUTTON(X)` macros (where `X` is generally 1 for the left, 2 for middle, 3 for the right button), and `x` and `y` are set to the mouse deltas since the last call to [SDL_GetRelativeMouseState](SDL_GetRelativeMouseState)() or since event initialization. You can pass NULL for either `x` or `y`. ## Version This function is available since SDL 2.0.0. ## See Also - [SDL_GetMouseState](SDL_GetMouseState) ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryMouse](CategoryMouse)