BrightnessTray.Caffeine.lockSleepMode C# (CSharp) Метод

        public static void lockSleepMode()
        {
            // Set new state to prevent monitor off, and thus keep the system from sleeping
            fPreviousExecutionState = NativeMethods.SetThreadExecutionState(NativeMethods.ES_CONTINUOUS | NativeMethods.ES_DISPLAY_REQUIRED);
            if (fPreviousExecutionState == 0)
            {
                #if DEBUG
                throw new Exception("SetThreadExecutionState failed.");
                #endif
            }
        }

        private void CaffeineMenuEventHandler(object sender, EventArgs e)
        {
            System.Windows.Forms.MenuItem menuitem = sender as System.Windows.Forms.MenuItem;
            if (menuitem != null)
            {
                if (menuitem.Checked)
                {
                    // reverse-of-being-checked action
                    Caffeine.unlockSleepMode();
                }
                else
                {
                    Caffeine.lockSleepMode();
                }

                menuitem.Checked = !menuitem.Checked;
            }
        }