Prevent the screen from being blanked by a screen saver.
Returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.
If you disable the screensaver, it is automatically re-enabled when SDL quits.
The screensaver is disabled by default since SDL 2.0.2. Before SDL 2.0.2 the screensaver was enabled by default.
This function is available since SDL 3.0.0.