= SDL_MUSTLOCK = Use this function to determine whether a surface must be locked for access. == Syntax == SDL_bool SDL_MUSTLOCK(SDL_Surface* surface) == Function Parameters == {| |'''surface''' |the [[SDL_Surface]] structure to query |} == Return Value == Returns SDL_TRUE if the surface must be locked for access, SDL_FALSE if not. == Related Functions == :[[SDL_LockSurface]] ---- [[CategoryAPI]], [[CategorySurface]]