LCD Display on/off

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Here's a small modification to luascript.c that I use to keep the backlight off after set_backlight(0). It might make a nice addition to the trunk, just to keep from having to answer so many questions about set_backlight(0)

Code: [Select]

static int bldark=0; //flags backlight off

static int luaCB_set_backlight( lua_State* L )
{
  bldark = (luaL_checknumber(L,1)==0);
  //if (bldark) TurnOffBackLight();
  //else TurnOnBackLight();
  if (!bldark) TurnOnBackLight(); //else will turn off next yield
  return 0;
}


// run a timeslice of lua script
int lua_script_run(void)
{
  int Lres;
  int top;
  if (run_first_resume) {
      run_first_resume = 0;
      top = 0;
      bldark=0;
  } else {
      top = lua_gettop(Lt);
  }
  run_start_tick = get_tick_count();
  run_hook_count = 0;
  if (bldark) TurnOffBackLight();
  Lres = lua_resume( Lt, top );

  if (Lres == LUA_YIELD)return SCRIPT_RUN_RUNNING; //yielded

  bldark=0;
  TurnOnBackLight();

  if (Lres != 0)return lua_script_error(Lt,1);
  // finished normally, add ptp result
  lua_script_finish(Lt);
  // Display 'Finished message', unless running from PTP
  if (lua_script_is_ptp == 0)
      script_console_add_line(LANG_CONSOLE_TEXT_FINISHED);
  return SCRIPT_RUN_ENDED;
}