Module java.desktop
Package java.awt.desktop

# Interface ScreenSleepListener

All Superinterfaces:
  `EventListener`, `SystemEventListener`

public interface ScreenSleepListener extends SystemEventListener
Implementors receive notification when the displays attached to the system have entered power save sleep.

This notification is useful for discontinuing a costly animation, or indicating that the user is no longer present on a network service.

Since:
  9

## Method Summary

Modifier and Type
Method
Description
`void`
`screenAboutToSleep(ScreenSleepEvent e)`
Called when the system displays have entered power save sleep.
`void`
`screenAwoke(ScreenSleepEvent e)`
Called when the system displays have awoken from power save sleep.

## Method Details

### screenAboutToSleep

void screenAboutToSleep(ScreenSleepEvent e)
Called when the system displays have entered power save sleep.

Parameters:
  `e` - the screen sleep event

### screenAwoke

void screenAwoke(ScreenSleepEvent e)
Called when the system displays have awoken from power save sleep.

Parameters:
  `e` - the screen sleep event