Function hscroll

src/platform/windows/input.cpp:596–606

  }

  void hscroll(input_t &input, int distance) {
    INPUT i {};

    i.type = INPUT_MOUSE;
    auto &mi = i.mi;

    mi.dwFlags = MOUSEEVENTF_HWHEEL;
    mi.mouseData = distance;

    send_input(i);
  }

  void keyboard_update(input_t &input, uint16_t modcode, bool release, uint8_t flags) {
    INPUT i {};