Function sdl2_sys::SDL_GetRelativeMouseState

pub unsafe extern "C" fn SDL_GetRelativeMouseState(
    x: *mut c_int, 
    y: *mut c_int
) -> Uint32

\brief Retrieve the relative state of the mouse.

The current button state is returned as a button bitmask, which can be tested using the SDL_BUTTON(X) macros, and x and y are set to the mouse deltas since the last call to SDL_GetRelativeMouseState().