<?xml version="1.0" encoding="utf-8"?>
<page xmlns="http://projectmallard.org/1.0/" xmlns:its="http://www.w3.org/2005/11/its" type="topic" style="a11y task" id="a11y-visualalert" xml:lang="zh-CN">

  <info>
    <link type="guide" xref="a11y#sound"/>
    <link type="seealso" xref="sound-alert"/>

    <revision pkgversion="3.7.1" date="2012-11-10" status="outdated"/>
    <revision pkgversion="3.9.92" date="2013-09-18" status="candidate"/>
    <revision pkgversion="3.13.92" date="2014-09-20" status="final"/>
    <revision pkgversion="3.18" date="2015-09-28" status="final"/>

    <include xmlns="http://www.w3.org/2001/XInclude" href="legal.xml"/>

    <credit type="author">
      <name>Shaun McCance</name>
      <email>shaunm@gnome.org</email>
    </credit>
    <credit type="editor">
      <name>Michael Hill</name>
      <email>mdhillca@gmail.com</email>
    </credit>
    <credit type="editor">
      <name>Ekaterina Gerasimova</name>
      <email>kittykat3756@gmail.com</email>
    </credit>

    <desc>播放警告声时，启用视觉警告：屏幕或窗口闪烁。</desc>
  
    <mal:credit xmlns:mal="http://projectmallard.org/1.0/" type="translator copyright">
      <mal:name>TeliuTe</mal:name>
      <mal:email>teliute@163.com</mal:email>
      <mal:years>2011, 2012</mal:years>
    </mal:credit>
  </info>

  <title>警告声响起时屏幕闪烁</title>

  <p>您的计算机将针对特定类型的消息和事件播放简单的警告声。如果您很难听到这些声音，可以在播放警告声时让整个屏幕或当前窗口闪烁。</p>

  <p>如果您处在需要计算机保持静音的环境中，如图书馆，此选项非常有用。请参阅<link xref="sound-alert"/>了解如何关闭警告声，并启用视觉警告。</p>

  <steps>
    <item>
      <p>Open the <gui xref="shell-introduction#activities">Activities</gui> overview and
      start typing <gui>Universal Access</gui>.</p>
    </item>
    <item>
      <p>Click on <gui>Universal Access</gui> to open the panel.</p>
    </item>
    <item>
      <p>Press <gui>Visual Alerts</gui> in the <gui>Hearing</gui> section.</p>
    </item>
    <item>
      <p>Switch <gui>Visual Alerts</gui> to <gui>ON</gui>.</p>
    </item>
    <item>
      <p> Select whether you want the entire screen or just your current window
      title to flash.</p>
    </item>
  </steps>

  <note style="tip">
    <p>您可以在顶部面板上的<link xref="a11y-icon">辅助功能图标</link>中，快速启用<gui>视觉提醒</gui>。</p>
  </note>

</page>
