Function sdl2_sys::SDL_AddHintCallback

pub unsafe extern "C" fn SDL_AddHintCallback(
    name: *const c_char, 
    callback: SDL_HintCallback, 
    userdata: *mut c_void
)

\brief Add a function to watch a particular hint

\param name The hint to watch \param callback The function to call when the hint value changes \param userdata A pointer to pass to the callback function