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<div class="header">
<div class="subTitle">
javax.swing
</div>
<h2 class="title" title="Class JRootPane">Class JRootPane</h2>
</div><div class="contentContainer">
<ul class="inheritance">
<li><a href="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li><a href="../../java/awt/Component.html" title="class in java.awt">java.awt.Component</a></li>
<li>
<ul class="inheritance">
<li><a href="../../java/awt/Container.html" title="class in java.awt">java.awt.Container</a></li>
<li>
<ul class="inheritance">
<li><a href="../../javax/swing/JComponent.html" title="class in javax.swing">javax.swing.JComponent</a></li>
<li>
<ul class="inheritance">
<li>javax.swing.JRootPane</li>
</ul> </li>
</ul> </li>
</ul> </li>
</ul> </li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>
All Implemented Interfaces:
</dt>
<dd>
<span><a href="../../java/awt/image/ImageObserver.html" title="java.awt.image中的接口">ImageObserver</a> ， <a href="../../java/awt/MenuContainer.html" title="java.awt中的接口">MenuContainer</a> ， <a href="../../java/io/Serializable.html" title="java.io中的接口">Serializable</a> ， <a href="../../javax/accessibility/Accessible.html" title="javax.accessibility中的接口">Accessible</a></span>
</dd>
</dl>
<hr/> <br/> <pre>public class <span class="typeNameLabel">JRootPane</span>
extends <a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a>
implements <a href="../../javax/accessibility/Accessible.html" title="interface in javax.accessibility">Accessible</a></pre>
<div class="block">
<span>通过在后台使用一个轻量级容器<code>JFrame</code> ， <code>JDialog</code> ， <code>JWindow</code> ， <code>JApplet</code>和<code>JInternalFrame</code> 。</span>
<span>有关根窗格提供的功能的面向任务的信息，请参阅<em>Java教程</em>中<em>的</em> <a href="http://docs.oracle.com/javase/tutorial/uiswing/components/rootpane.html">How to Use Root Panes</a> 。</span>
<p> <span>以下图像显示了使用根窗格的类之间的关系。</span> </p>
<p style="text-align:center"><img alt="以下文字描述了此图形。" height="484" src="doc-files/JRootPane-1.gif" width="629"/></p>
<span>“重量级”组件（委托给对等体或主机系统上的本机组件）的组件显示为较暗，较重的组件。</span>
<span>四个重量级JFC / Swing容器（ <code>JFrame</code> ， <code>JDialog</code> ， <code>JWindow</code>和<code>JApplet</code> ）被示出相对于它们扩展AWT类。</span>
<span>这四个组件是Swing库中唯一重量级的容器。</span>
<span>还示出了轻型容器<code>JInternalFrame</code> 。</span>
<span>所有这五个JFC / Swing容器都实现了<code>RootPaneContainer</code>接口，他们都将其操作委托给一个<code>JRootPane</code> （顶部有一个“句柄”）。</span>
<blockquote>
<span><b>Note:</b> The <code>JComponent</code> method <code>getRootPane</code> can be used to obtain the <code>JRootPane</code> that contains a given component.</span>
</blockquote>
<span> <img alt="The following text describes this graphic." height="386" src="doc-files/JRootPane-2.gif" width="349"/> </span>
<table border="0" style="float:right" summary="layout">
</table>
<span>右图显示了一个<code>JRootPane</code> 。</span>
<span>A <code>JRootpane</code>由<code>glassPane</code> ，可选的<code>menuBar</code>和<code>contentPane</code> 。</span>
<span>（ <code>JLayeredPane</code>管理<code>menuBar</code>和<code>contentPane</code> ） <code>glassPane</code>位于所有的顶部，它可以拦截鼠标移动。</span>
<span>由于<code>glassPane</code> （如<code>contentPane</code> ）可以是任意组件，也可以设置<code>glassPane</code>进行绘图。</span>
<span>然后， <code>glassPane</code>上的线条和图像可以在下面的框架之上，而不受其边界的限制。</span>
<p> <span>虽然<code>menuBar</code>组件是可选的，在<code>layeredPane</code> ， <code>contentPane</code>和<code>glassPane</code>始终存在。</span> <span>尝试将其设置为<code>null</code>会生成异常。</span> </p>
<p> <span>要将组件添加到<code>JRootPane</code> （可选菜单栏除外），您将对象添加到<code>contentPane</code>的<code>JRootPane</code> ，如下所示：</span> </p>
<pre> <span>rootPane.getContentPane().add(child);</span> </pre>
<span>设置布局管理器，删除组件，列出子项等同样的原则。所有这些方法都在<code>contentPane</code>而不是在<code>JRootPane</code>上<code>JRootPane</code> 。</span>
<blockquote>
<span><b>Note:</b> The default layout manager for the <code>contentPane</code> is a <code>BorderLayout</code> manager. However, the <code>JRootPane</code> uses a custom <code>LayoutManager</code>. So, when you want to change the layout manager for the components you added to a <code>JRootPane</code>, be sure to use code like this: <pre>
rootPane.getContentPane().setLayout(new BoxLayout());
</pre></span>
</blockquote>
<span>如果在<code>JMenuBar</code>上设置了<code>JRootPane</code> ，则它将沿着框架的上边缘定位。</span>
<span><code>contentPane</code>的位置和大小进行了调整，以填补剩余的面积。</span>
<span>（ <code>JMenuBar</code>和<code>contentPane</code>被添加到<code>layeredPane</code>组件在<code>JLayeredPane.FRAME_CONTENT_LAYER</code>层。）</span>
<p> <span>该<code>layeredPane</code>是在所有儿童的家长<code>JRootPane</code> -既是菜单的直接父和所有组件的祖父加入到<code>contentPane</code> 。</span> <span>它是一个<code>JLayeredPane</code>的实例，它提供了在多个层中添加组件的功能。</span> <span>使用菜单弹出窗口，对话框和拖动时，此功能非常有用，您需要将组件放置在窗格中所有其他组件的顶部。</span> </p>
<p> <span><code>glassPane</code>位于JRootPane中所有其他组件的<code>JRootPane</code> 。</span> <span>这提供了一个方便的地方来绘制所有其他组件，并且可以拦截鼠标事件，这对拖动和绘图都是有用的。</span> <span>开发人员可以使用<code>setVisible</code>在<code>glassPane</code>时控制<code>glassPane</code>显示比其他孩子。</span> <span>默认情况下， <code>glassPane</code>不可见。</span> </p>
<p> <span>自定义<code>LayoutManager</code>所用<code>JRootPane</code>确保：</span> </p>
<ol>
<li> <span><code>glassPane</code>填写<code>JRootPane</code> （边界 - 插图）的整个可见区域。</span> </li>
<li> <span>该<code>layeredPane</code>充满整个可视区域<code>JRootPane</code> 。</span> <span>（边界 - 插图）</span> </li>
<li> <span>所述<code>menuBar</code>位于的上边缘<code>layeredPane</code> 。</span> </li>
<li> <span><code>contentPane</code>填写整个可见区域，减去<code>menuBar</code> （如果存在）。</span> </li>
</ol>
<span><code>JRootPane</code>视图层次结构中的任何其他视图将被忽略。</span>
<p> <span>如果您更换<code>LayoutManager</code>的<code>JRootPane</code> ，那么您有责任管理所有这些视图。</span> <span>所以通常你会想确保你更改<code>contentPane</code>而不是<code>JRootPane</code>本身的布局管理器！</span> </p>
<p> <span>Swing的绘画架构需要一个不透明的<code>JComponent</code>存在于所有其他组件之上的包含层次结构中。</span> <span>这通常通过内容窗格提供。</span> <span>如果更换内容窗格，建议你做内容窗格不透明的方式<code>setOpaque(true)</code> 。</span> <span>另外，如果内容窗格覆盖<code>paintComponent</code> ，则需要在paintComponent中完全填充不透明颜色的<code>paintComponent</code> 。</span> </p>
<p> <span><strong>警告：</strong> Swing不是线程安全的。</span> <span>有关更多信息，请参阅<a href="package-summary.html#threading">Swing's Threading Policy</a> 。</span> </p>
<p> <span><strong>警告：</strong>此类的序列化对象与将来的Swing版本不兼容。</span> <span>当前的序列化支持适用于运行相同版本的Swing的应用程序之间的短期存储或RMI。</span> <span>从1.4开始，对所有JavaBeans的长期存储的支持已被添加到<code>java.beans</code>包中。</span> <span>请参阅<a href="../../java/beans/XMLEncoder.html" title="java.beans中的类"><code>XMLEncoder</code></a> 。</span> </p>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/JLayeredPane.html" title="javax.swing中的类"><code>JLayeredPane</code></a> ， <a href="../../javax/swing/JMenuBar.html" title="javax.swing中的类"><code>JMenuBar</code></a> ， <a href="../../javax/swing/JWindow.html" title="javax.swing中的类"><code>JWindow</code></a> ， <a href="../../javax/swing/JFrame.html" title="javax.swing中的类"><code>JFrame</code></a> ， <a href="../../javax/swing/JDialog.html" title="javax.swing中的类"><code>JDialog</code></a> ， <a href="../../javax/swing/JApplet.html" title="javax.swing中的类"><code>JApplet</code></a> ， <a href="../../javax/swing/JInternalFrame.html" title="javax.swing中的类"><code>JInternalFrame</code></a> ， <a href="../../javax/swing/JComponent.html" title="javax.swing中的类"><code>JComponent</code></a> ， <a href="../../javax/swing/BoxLayout.html" title="javax.swing中的类"><code>BoxLayout</code></a> ， <a href="http://java.sun.com/products/jfc/tsc/articles/mixing/">Mixing Heavy and Light Components</a></span>
</dd>
</dl> </li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="nested.class.summary">
<!-- --> </a> <h3>Nested Class Summary</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Nested Class Summary table, listing nested classes, and an explanation">
<caption>
<span>Nested Classes</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected class </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.AccessibleJRootPane.html" title="class in javax.swing">JRootPane.AccessibleJRootPane</a></span></code>
<div class="block">
这个类实现了可访问性支持
<code>JRootPane</code>类。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected class </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.RootLayout.html" title="class in javax.swing">JRootPane.RootLayout</a></span></code>
<div class="block">
一个自定义布局管理器，负责分层面，玻璃面和菜单栏的布局。
</div> </td>
</tr>
</tbody>
</table>
<ul class="blockList">
<li class="blockList"><a name="nested.classes.inherited.from.class.javax.swing.JComponent">
<!-- --> </a> <h3>Nested classes/interfaces inherited from class javax.swing.<a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></h3> <code><a href="../../javax/swing/JComponent.AccessibleJComponent.html" title="class in javax.swing">JComponent.AccessibleJComponent</a></code></li>
</ul>
<ul class="blockList">
<li class="blockList"><a name="nested.classes.inherited.from.class.java.awt.Container">
<!-- --> </a> <h3>Nested classes/interfaces inherited from class java.awt.<a href="../../java/awt/Container.html" title="class in java.awt">Container</a></h3> <code><a href="../../java/awt/Container.AccessibleAWTContainer.html" title="class in java.awt">Container.AccessibleAWTContainer</a></code></li>
</ul>
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<li class="blockList"><a name="nested.classes.inherited.from.class.java.awt.Component">
<!-- --> </a> <h3>Nested classes/interfaces inherited from class java.awt.<a href="../../java/awt/Component.html" title="class in java.awt">Component</a></h3> <code><a href="../../java/awt/Component.AccessibleAWTComponent.html" title="class in java.awt">Component.AccessibleAWTComponent</a>, <a href="../../java/awt/Component.BaselineResizeBehavior.html" title="enum in java.awt">Component.BaselineResizeBehavior</a>, <a href="../../java/awt/Component.BltBufferStrategy.html" title="class in java.awt">Component.BltBufferStrategy</a>, <a href="../../java/awt/Component.FlipBufferStrategy.html" title="class in java.awt">Component.FlipBufferStrategy</a></code></li>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Field Summary table, listing fields, and an explanation">
<caption>
<span>Fields</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#COLOR_CHOOSER_DIALOG">COLOR_CHOOSER_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../java/awt/Container.html" title="class in java.awt">Container</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#contentPane">contentPane</a></span></code>
<div class="block">
内容窗格。
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../javax/swing/JButton.html" title="class in javax.swing">JButton</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#defaultButton">defaultButton</a></span></code>
<div class="block">
当窗格具有焦点并且出现特定于UI的操作（如按
<b>Enter</b>键）时，该按钮将被激活。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected javax.swing.JRootPane.DefaultAction</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#defaultPressAction">defaultPressAction</a></span></code>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<div class="block">
<span><span class="deprecationComment">从Java 2平台v1.3开始。</span></span>
</div>
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected javax.swing.JRootPane.DefaultAction</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#defaultReleaseAction">defaultReleaseAction</a></span></code>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<div class="block">
<span><span class="deprecationComment">从Java 2平台v1.3开始。</span></span>
</div>
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#ERROR_DIALOG">ERROR_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#FILE_CHOOSER_DIALOG">FILE_CHOOSER_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#FRAME">FRAME</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#glassPane">glassPane</a></span></code>
<div class="block">
玻璃窗格覆盖菜单栏和内容窗格，因此可以拦截鼠标移动等。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#INFORMATION_DIALOG">INFORMATION_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#layeredPane">layeredPane</a></span></code>
<div class="block">
管理菜单栏和内容窗格的分层窗格。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#menuBar">menuBar</a></span></code>
<div class="block">
菜单栏。
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#NONE">NONE</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#PLAIN_DIALOG">PLAIN_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#QUESTION_DIALOG">QUESTION_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#WARNING_DIALOG">WARNING_DIALOG</a></span></code>
<div class="block">
用于windowDecorationStyle属性的常量。
</div> </td>
</tr>
</tbody>
</table>
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</ul> </li>
</ul>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.summary">
<!-- --> </a> <h3>构造方法摘要</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
<caption>
<span>构造方法</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#JRootPane--">JRootPane</a></span>()</code>
<div class="block">
创建一个
<code>JRootPane</code> ，设立了
<code>glassPane</code> ，
<code>layeredPane</code>和
<code>contentPane</code> 。
</div> </td>
</tr>
</tbody>
</table> </li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method.summary">
<!-- --> </a> <h3>方法摘要</h3>
<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
<caption>
<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t6"><span><a href="javascript:show(32);">弃用的方法</a></span><span class="tabEnd"> </span></span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor" id="i0">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#addImpl-java.awt.Component-java.lang.Object-int-">addImpl</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> comp, <a href="../../java/lang/Object.html" title="class in java.lang">Object</a> constraints, int index)</code>
<div class="block">
覆盖以执行玻璃部件的位置作为零子。
</div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#addNotify--">addNotify</a></span>()</code>
<div class="block">
通知此组件它现在有一个父组件。
</div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code>protected <a href="../../java/awt/Container.html" title="class in java.awt">Container</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#createContentPane--">createContentPane</a></span>()</code>
<div class="block">
由构造函数调用方法创建默认的
<code>contentPane</code> 。
</div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code>protected <a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#createGlassPane--">createGlassPane</a></span>()</code>
<div class="block">
由构造函数调用方法创建默认的
<code>glassPane</code> 。
</div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code>protected <a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#createLayeredPane--">createLayeredPane</a></span>()</code>
<div class="block">
由构造函数调用方法创建默认的
<code>layeredPane</code> 。
</div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code>protected <a href="../../java/awt/LayoutManager.html" title="interface in java.awt">LayoutManager</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#createRootLayout--">createRootLayout</a></span>()</code>
<div class="block">
由构造函数调用方法创建默认的
<code>layoutManager</code> 。
</div> </td>
</tr>
<tr class="altColor" id="i6">
<td class="colFirst"><code><a href="../../javax/accessibility/AccessibleContext.html" title="class in javax.accessibility">AccessibleContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getAccessibleContext--">getAccessibleContext</a></span>()</code>
<div class="block">
获取
<code>AccessibleContext</code>与此相关
<code>JRootPane</code> 。
</div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code><a href="../../java/awt/Container.html" title="class in java.awt">Container</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getContentPane--">getContentPane</a></span>()</code>
<div class="block">
返回内容窗格 - 保存由根窗格父化的组件的容器。
</div> </td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code><a href="../../javax/swing/JButton.html" title="class in javax.swing">JButton</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getDefaultButton--">getDefaultButton</a></span>()</code>
<div class="block">
返回
<code>defaultButton</code>属性的值。
</div> </td>
</tr>
<tr class="rowColor" id="i9">
<td class="colFirst"><code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getGlassPane--">getGlassPane</a></span>()</code>
<div class="block">
返回此
<code>JRootPane</code>的当前玻璃窗格。
</div> </td>
</tr>
<tr class="altColor" id="i10">
<td class="colFirst"><code><a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getJMenuBar--">getJMenuBar</a></span>()</code>
<div class="block">
从分层窗格返回菜单栏。
</div> </td>
</tr>
<tr class="rowColor" id="i11">
<td class="colFirst"><code><a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getLayeredPane--">getLayeredPane</a></span>()</code>
<div class="block">
获取根窗格使用的分层窗格。
</div> </td>
</tr>
<tr class="altColor" id="i12">
<td class="colFirst"><code><a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getMenuBar--">getMenuBar</a></span>()</code>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<div class="block">
<span><span class="deprecationComment">从Swing版本1.0.3替换为<code>getJMenuBar()</code> 。</span></span>
</div>
</div> </td>
</tr>
<tr class="rowColor" id="i13">
<td class="colFirst"><code><a href="../../javax/swing/plaf/RootPaneUI.html" title="class in javax.swing.plaf">RootPaneUI</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getUI--">getUI</a></span>()</code>
<div class="block">
返回渲染此组件的L＆F对象。
</div> </td>
</tr>
<tr class="altColor" id="i14">
<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getUIClassID--">getUIClassID</a></span>()</code>
<div class="block">
返回一个字符串，它指定呈现此组件的L＆F类的名称。
</div> </td>
</tr>
<tr class="rowColor" id="i15">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#getWindowDecorationStyle--">getWindowDecorationStyle</a></span>()</code>
<div class="block">
返回一个恒定识别窗口装饰品的类型
<code>JRootPane</code>被提供。
</div> </td>
</tr>
<tr class="altColor" id="i16">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#isOptimizedDrawingEnabled--">isOptimizedDrawingEnabled</a></span>()</code>
<div class="block">
<code>glassPane</code>和
<code>contentPane</code>具有相同的界限，这意味着
<code>JRootPane</code>不会
<code>JRootPane</code>的孩子，这应该返回false。
</div> </td>
</tr>
<tr class="rowColor" id="i17">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#isValidateRoot--">isValidateRoot</a></span>()</code>
<div class="block">
如果这个JRootPane的
<code>JRootPane</code>打电话
<code>revalidate</code> ，从这里下来验证。
</div> </td>
</tr>
<tr class="altColor" id="i18">
<td class="colFirst"><code>protected <a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#paramString--">paramString</a></span>()</code>
<div class="block">
返回此
<code>JRootPane</code>的字符串表示
<code>JRootPane</code> 。
</div> </td>
</tr>
<tr class="rowColor" id="i19">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#removeNotify--">removeNotify</a></span>()</code>
<div class="block">
通知此组件它不再具有父组件。
</div> </td>
</tr>
<tr class="altColor" id="i20">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setContentPane-java.awt.Container-">setContentPane</a></span>(<a href="../../java/awt/Container.html" title="class in java.awt">Container</a> content)</code>
<div class="block">
设置内容窗格 - 保存由根窗格加载的组件的容器。
</div> </td>
</tr>
<tr class="rowColor" id="i21">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setDefaultButton-javax.swing.JButton-">setDefaultButton</a></span>(<a href="../../javax/swing/JButton.html" title="class in javax.swing">JButton</a> defaultButton)</code>
<div class="block">
设置
<code>defaultButton</code>属性，它确定这个当前的默认按钮
<code>JRootPane</code> 。
</div> </td>
</tr>
<tr class="altColor" id="i22">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setDoubleBuffered-boolean-">setDoubleBuffered</a></span>(boolean aFlag)</code>
<div class="block">
设置此组件是否应该使用缓冲区来绘制。
</div> </td>
</tr>
<tr class="rowColor" id="i23">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setGlassPane-java.awt.Component-">setGlassPane</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> glass)</code>
<div class="block">
设置指定的
<code>Component</code>成为这根窗格玻璃板。
</div> </td>
</tr>
<tr class="altColor" id="i24">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setJMenuBar-javax.swing.JMenuBar-">setJMenuBar</a></span>(<a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> menu)</code>
<div class="block">
添加或更改分层窗格中使用的菜单栏。
</div> </td>
</tr>
<tr class="rowColor" id="i25">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setLayeredPane-javax.swing.JLayeredPane-">setLayeredPane</a></span>(<a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a> layered)</code>
<div class="block">
设置根窗格的分层窗格。
</div> </td>
</tr>
<tr class="altColor" id="i26">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setMenuBar-javax.swing.JMenuBar-">setMenuBar</a></span>(<a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> menu)</code>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<div class="block">
<span><span class="deprecationComment">从Swing版本1.0.3替换为<code>setJMenuBar(JMenuBar menu)</code> 。</span></span>
</div>
</div> </td>
</tr>
<tr class="rowColor" id="i27">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setUI-javax.swing.plaf.RootPaneUI-">setUI</a></span>(<a href="../../javax/swing/plaf/RootPaneUI.html" title="class in javax.swing.plaf">RootPaneUI</a> ui)</code>
<div class="block">
设置渲染此组件的L＆F对象。
</div> </td>
</tr>
<tr class="altColor" id="i28">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#setWindowDecorationStyle-int-">setWindowDecorationStyle</a></span>(int windowDecorationStyle)</code>
<div class="block">
设置
<code>JRootPane</code>应该提供的窗口装饰类型（如边框，关闭窗口的小部件，标题...）。
</div> </td>
</tr>
<tr class="rowColor" id="i29">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JRootPane.html#updateUI--">updateUI</a></span>()</code>
<div class="block">
将UI属性重置为当前外观的值。
</div> </td>
</tr>
</tbody>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.javax.swing.JComponent">
<!-- --> </a> <h3>Methods inherited from class javax.swing.<a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></h3> <code><a href="../../javax/swing/JComponent.html#addAncestorListener-javax.swing.event.AncestorListener-">addAncestorListener</a>, <a href="../../javax/swing/JComponent.html#addVetoableChangeListener-java.beans.VetoableChangeListener-">addVetoableChangeListener</a>, <a href="../../javax/swing/JComponent.html#computeVisibleRect-java.awt.Rectangle-">computeVisibleRect</a>, <a href="../../javax/swing/JComponent.html#contains-int-int-">contains</a>, <a href="../../javax/swing/JComponent.html#createToolTip--">createToolTip</a>, <a href="../../javax/swing/JComponent.html#disable--">disable</a>, <a href="../../javax/swing/JComponent.html#enable--">enable</a>, <a href="../../javax/swing/JComponent.html#firePropertyChange-java.lang.String-boolean-boolean-">firePropertyChange</a>, <a href="../../javax/swing/JComponent.html#firePropertyChange-java.lang.String-char-char-">firePropertyChange</a>, <a href="../../javax/swing/JComponent.html#firePropertyChange-java.lang.String-int-int-">firePropertyChange</a>, <a href="../../javax/swing/JComponent.html#fireVetoableChange-java.lang.String-java.lang.Object-java.lang.Object-">fireVetoableChange</a>, <a href="../../javax/swing/JComponent.html#getActionForKeyStroke-javax.swing.KeyStroke-">getActionForKeyStroke</a>, <a href="../../javax/swing/JComponent.html#getActionMap--">getActionMap</a>, <a href="../../javax/swing/JComponent.html#getAlignmentX--">getAlignmentX</a>, <a href="../../javax/swing/JComponent.html#getAlignmentY--">getAlignmentY</a>, <a href="../../javax/swing/JComponent.html#getAncestorListeners--">getAncestorListeners</a>, <a href="../../javax/swing/JComponent.html#getAutoscrolls--">getAutoscrolls</a>, <a href="../../javax/swing/JComponent.html#getBaseline-int-int-">getBaseline</a>, <a href="../../javax/swing/JComponent.html#getBaselineResizeBehavior--">getBaselineResizeBehavior</a>, <a href="../../javax/swing/JComponent.html#getBorder--">getBorder</a>, <a href="../../javax/swing/JComponent.html#getBounds-java.awt.Rectangle-">getBounds</a>, <a href="../../javax/swing/JComponent.html#getClientProperty-java.lang.Object-">getClientProperty</a>, <a href="../../javax/swing/JComponent.html#getComponentGraphics-java.awt.Graphics-">getComponentGraphics</a>, <a href="../../javax/swing/JComponent.html#getComponentPopupMenu--">getComponentPopupMenu</a>, <a href="../../javax/swing/JComponent.html#getConditionForKeyStroke-javax.swing.KeyStroke-">getConditionForKeyStroke</a>, <a href="../../javax/swing/JComponent.html#getDebugGraphicsOptions--">getDebugGraphicsOptions</a>, <a href="../../javax/swing/JComponent.html#getDefaultLocale--">getDefaultLocale</a>, <a href="../../javax/swing/JComponent.html#getFontMetrics-java.awt.Font-">getFontMetrics</a>, <a href="../../javax/swing/JComponent.html#getGraphics--">getGraphics</a>, <a href="../../javax/swing/JComponent.html#getHeight--">getHeight</a>, <a href="../../javax/swing/JComponent.html#getInheritsPopupMenu--">getInheritsPopupMenu</a>, <a href="../../javax/swing/JComponent.html#getInputMap--">getInputMap</a>, <a href="../../javax/swing/JComponent.html#getInputMap-int-">getInputMap</a>, <a href="../../javax/swing/JComponent.html#getInputVerifier--">getInputVerifier</a>, <a href="../../javax/swing/JComponent.html#getInsets--">getInsets</a>, <a href="../../javax/swing/JComponent.html#getInsets-java.awt.Insets-">getInsets</a>, <a href="../../javax/swing/JComponent.html#getListeners-java.lang.Class-">getListeners</a>, <a href="../../javax/swing/JComponent.html#getLocation-java.awt.Point-">getLocation</a>, <a href="../../javax/swing/JComponent.html#getMaximumSize--">getMaximumSize</a>, <a href="../../javax/swing/JComponent.html#getMinimumSize--">getMinimumSize</a>, <a href="../../javax/swing/JComponent.html#getNextFocusableComponent--">getNextFocusableComponent</a>, <a href="../../javax/swing/JComponent.html#getPopupLocation-java.awt.event.MouseEvent-">getPopupLocation</a>, <a href="../../javax/swing/JComponent.html#getPreferredSize--">getPreferredSize</a>, <a href="../../javax/swing/JComponent.html#getRegisteredKeyStrokes--">getRegisteredKeyStrokes</a>, <a href="../../javax/swing/JComponent.html#getRootPane--">getRootPane</a>, <a href="../../javax/swing/JComponent.html#getSize-java.awt.Dimension-">getSize</a>, <a href="../../javax/swing/JComponent.html#getToolTipLocation-java.awt.event.MouseEvent-">getToolTipLocation</a>, <a href="../../javax/swing/JComponent.html#getToolTipText--">getToolTipText</a>, <a href="../../javax/swing/JComponent.html#getToolTipText-java.awt.event.MouseEvent-">getToolTipText</a>, <a href="../../javax/swing/JComponent.html#getTopLevelAncestor--">getTopLevelAncestor</a>, <a href="../../javax/swing/JComponent.html#getTransferHandler--">getTransferHandler</a>, <a href="../../javax/swing/JComponent.html#getVerifyInputWhenFocusTarget--">getVerifyInputWhenFocusTarget</a>, <a href="../../javax/swing/JComponent.html#getVetoableChangeListeners--">getVetoableChangeListeners</a>, <a href="../../javax/swing/JComponent.html#getVisibleRect--">getVisibleRect</a>, <a href="../../javax/swing/JComponent.html#getWidth--">getWidth</a>, <a href="../../javax/swing/JComponent.html#getX--">getX</a>, <a href="../../javax/swing/JComponent.html#getY--">getY</a>, <a href="../../javax/swing/JComponent.html#grabFocus--">grabFocus</a>, <a href="../../javax/swing/JComponent.html#hide--">hide</a>, <a href="../../javax/swing/JComponent.html#isDoubleBuffered--">isDoubleBuffered</a>, <a href="../../javax/swing/JComponent.html#isLightweightComponent-java.awt.Component-">isLightweightComponent</a>, <a href="../../javax/swing/JComponent.html#isManagingFocus--">isManagingFocus</a>, <a 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<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../java/lang/Object.html#clone--">clone</a>, <a href="../../java/lang/Object.html#equals-java.lang.Object-">equals</a>, <a href="../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../java/lang/Object.html#hashCode--">hashCode</a>, <a href="../../java/lang/Object.html#notify--">notify</a>, <a href="../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../java/lang/Object.html#wait--">wait</a>, <a href="../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
</ul> </li>
</ul> </li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ============ FIELD DETAIL =========== -->
<ul class="blockList">
<li class="blockList"><a name="field.detail">
<!-- --> </a> <h3>字段详细信息</h3> <a name="NONE">
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<ul class="blockList">
<li class="blockList"> <h4>NONE</h4> <pre>public static final int NONE</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>不应提供任何类型的窗口装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.NONE">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="FRAME">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>FRAME</h4> <pre>public static final int FRAME</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适用于框架的装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.FRAME">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="PLAIN_DIALOG">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>PLAIN_DIALOG</h4> <pre>public static final int PLAIN_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适合于Dialog的装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.PLAIN_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="INFORMATION_DIALOG">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>INFORMATION_DIALOG</h4> <pre>public static final int INFORMATION_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适用于显示信息性消息的Dialog的装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.INFORMATION_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="ERROR_DIALOG">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>ERROR_DIALOG</h4> <pre>public static final int ERROR_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适用于显示错误消息的Dialog的装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.ERROR_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="COLOR_CHOOSER_DIALOG">
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<ul class="blockList">
<li class="blockList"> <h4>COLOR_CHOOSER_DIALOG</h4> <pre>public static final int COLOR_CHOOSER_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适用于显示<code>JColorChooser</code>的Dialog的<code>JColorChooser</code> 。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.COLOR_CHOOSER_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="FILE_CHOOSER_DIALOG">
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<ul class="blockList">
<li class="blockList"> <h4>FILE_CHOOSER_DIALOG</h4> <pre>public static final int FILE_CHOOSER_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适用于显示<code>JFileChooser</code>的Dialog的<code>JFileChooser</code> 。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.FILE_CHOOSER_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="QUESTION_DIALOG">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>QUESTION_DIALOG</h4> <pre>public static final int QUESTION_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适合用于向用户呈现问题的Dialog的装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.QUESTION_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="WARNING_DIALOG">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>WARNING_DIALOG</h4> <pre>public static final int WARNING_DIALOG</pre>
<div class="block">
<span>用于windowDecorationStyle属性的常量。</span>
<span>表示<code>JRootPane</code>应提供适用于显示警告消息的Dialog的装饰。</span>
</div>
<dl>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.JRootPane.WARNING_DIALOG">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="menuBar">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>menuBar</h4> <pre>protected <a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> menuBar</pre>
<div class="block">
菜单栏。
</div> </li>
</ul> <a name="contentPane">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>contentPane</h4> <pre>protected <a href="../../java/awt/Container.html" title="class in java.awt">Container</a> contentPane</pre>
<div class="block">
内容窗格。
</div> </li>
</ul> <a name="layeredPane">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>layeredPane</h4> <pre>protected <a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a> layeredPane</pre>
<div class="block">
管理菜单栏和内容窗格的分层窗格。
</div> </li>
</ul> <a name="glassPane">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>glassPane</h4> <pre>protected <a href="../../java/awt/Component.html" title="class in java.awt">Component</a> glassPane</pre>
<div class="block">
玻璃窗格覆盖菜单栏和内容窗格，因此可以拦截鼠标移动等。
</div> </li>
</ul> <a name="defaultButton">
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<ul class="blockList">
<li class="blockList"> <h4>defaultButton</h4> <pre>protected <a href="../../javax/swing/JButton.html" title="class in javax.swing">JButton</a> defaultButton</pre>
<div class="block">
当窗格具有焦点并且出现特定于UI的操作（如按
<b>Enter</b>键）时，该按钮将被激活。
</div> </li>
</ul> <a name="defaultPressAction">
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<ul class="blockList">
<li class="blockList"> <h4>defaultPressAction</h4> <pre><a href="../../java/lang/Deprecated.html" title="annotation in java.lang">@Deprecated</a>
protected javax.swing.JRootPane.DefaultAction defaultPressAction</pre>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<span><span class="deprecationComment">从Java 2平台v1.3开始。</span></span>
</div>
<div class="block">
<span>从Java 2平台v1.3起，这个不可用的字段已不再使用了。</span>
<span>要覆盖默认按钮，此时应更换<code>Action</code>在<code>JRootPane</code>的<code>ActionMap</code> 。</span>
<span>有关详细信息，请参阅密钥绑定规范。</span>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JRootPane.html#defaultButton"><code>defaultButton</code></a>
</dd>
</dl> </li>
</ul> <a name="defaultReleaseAction">
<!-- --> </a>
<ul class="blockListLast">
<li class="blockList"> <h4>defaultReleaseAction</h4> <pre><a href="../../java/lang/Deprecated.html" title="annotation in java.lang">@Deprecated</a>
protected javax.swing.JRootPane.DefaultAction defaultReleaseAction</pre>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<span><span class="deprecationComment">从Java 2平台v1.3开始。</span></span>
</div>
<div class="block">
<span>从Java 2平台v1.3起，这个不可用的字段已不再使用了。</span>
<span>要覆盖默认按钮，此时应更换<code>Action</code>在<code>JRootPane</code>的<code>ActionMap</code> 。</span>
<span>有关详细信息，请参阅密钥绑定规范。</span>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JRootPane.html#defaultButton"><code>defaultButton</code></a>
</dd>
</dl> </li>
</ul> </li>
</ul>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
<!-- --> </a> <h3>构造方法详细信息</h3> <a name="JRootPane--">
<!-- --> </a>
<ul class="blockListLast">
<li class="blockList"> <h4>JRootPane</h4> <pre>public JRootPane()</pre>
<div class="block">
创建一个
<code>JRootPane</code> ，设立了
<code>glassPane</code> ，
<code>layeredPane</code>和
<code>contentPane</code> 。
</div> </li>
</ul> </li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- --> </a> <h3>方法详细信息</h3> <a name="setDoubleBuffered-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setDoubleBuffered</h4> <pre>public void setDoubleBuffered(boolean aFlag)</pre>
<div class="block">
<span>设置此组件是否应该使用缓冲区来绘制。</span>
<span>如果设置为true，则此组件的所有绘图将在屏幕外绘图缓冲区中完成。</span>
<span>屏幕上的绘画缓冲区将被复制到屏幕上。</span>
<span>如果一个<code>Component</code>被缓冲，并且其祖先之一也被缓存，那么将使用祖先缓冲区。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#setDoubleBuffered-boolean-">setDoubleBuffered</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>aFlag</code> - 如果为true，请将此组件设置为双缓冲
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.6
</dd>
</dl> </li>
</ul> <a name="getWindowDecorationStyle--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getWindowDecorationStyle</h4> <pre>public int getWindowDecorationStyle()</pre>
<div class="block">
返回一个恒定识别窗口装饰品的类型
<code>JRootPane</code>被提供。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个
<code>NONE</code> ，
<code>FRAME</code> ，
<code>PLAIN_DIALOG</code> ，
<code>INFORMATION_DIALOG</code> ，
<code>ERROR_DIALOG</code> ，
<code>COLOR_CHOOSER_DIALOG</code> ，
<code>FILE_CHOOSER_DIALOG</code> ，
<code>QUESTION_DIALOG</code>或
<code>WARNING_DIALOG</code> 。
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JRootPane.html#setWindowDecorationStyle-int-"><code>setWindowDecorationStyle(int)</code></a>
</dd>
</dl> </li>
</ul> <a name="setWindowDecorationStyle-int-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setWindowDecorationStyle</h4> <pre>public void setWindowDecorationStyle(int windowDecorationStyle)</pre>
<div class="block">
<span>设置<code>JRootPane</code>应提供的窗口装饰类型（如边框，关闭窗口的小部件，标题...）。</span>
<span>默认是不提供窗口装饰（ <code>NONE</code> ）。</span>
<p> <span>这只是一个提示，一些看起来和感觉可能不支持这一点。</span> <span>这是一个绑定属性。</span> </p>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>windowDecorationStyle</code> - 常规识别提供的窗口装饰。
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> -如果
<code>style</code>不是一个：
<code>NONE</code> ，
<code>FRAME</code> ，
<code>PLAIN_DIALOG</code> ，
<code>INFORMATION_DIALOG</code> ，
<code>ERROR_DIALOG</code> ，
<code>COLOR_CHOOSER_DIALOG</code> ，
<code>FILE_CHOOSER_DIALOG</code> ，
<code>QUESTION_DIALOG</code> ，或
<code>WARNING_DIALOG</code> 。
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.4
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JDialog.html#setDefaultLookAndFeelDecorated-boolean-"><code>JDialog.setDefaultLookAndFeelDecorated(boolean)</code></a> ，
<a href="../../javax/swing/JFrame.html#setDefaultLookAndFeelDecorated-boolean-"><code>JFrame.setDefaultLookAndFeelDecorated(boolean)</code></a> ，
<a href="../../javax/swing/LookAndFeel.html#getSupportsWindowDecorations--"><code>LookAndFeel.getSupportsWindowDecorations()</code></a>
</dd>
</dl> </li>
</ul> <a name="getUI--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getUI</h4> <pre>public <a href="../../javax/swing/plaf/RootPaneUI.html" title="class in javax.swing.plaf">RootPaneUI</a> getUI()</pre>
<div class="block">
返回渲染此组件的L＆F对象。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>LabelUI</code>对象
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.3
</dd>
</dl> </li>
</ul> <a name="setUI-javax.swing.plaf.RootPaneUI-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setUI</h4> <pre>public void setUI(<a href="../../javax/swing/plaf/RootPaneUI.html" title="class in javax.swing.plaf">RootPaneUI</a> ui)</pre>
<div class="block">
设置渲染此组件的L＆F对象。
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>ui</code> -
<code>LabelUI</code> L＆F对象
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
1.3
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/UIDefaults.html#getUI-javax.swing.JComponent-"><code>UIDefaults.getUI(javax.swing.JComponent)</code></a>
</dd>
</dl> </li>
</ul> <a name="updateUI--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>updateUI</h4> <pre>public void updateUI()</pre>
<div class="block">
将UI属性重置为当前外观的值。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#updateUI--">updateUI</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#updateUI--"><code>JComponent.updateUI()</code></a>
</dd>
</dl> </li>
</ul> <a name="getUIClassID--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getUIClassID</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> getUIClassID()</pre>
<div class="block">
返回一个字符串，它指定呈现此组件的L＆F类的名称。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#getUIClassID--">getUIClassID</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
字符串“RootPaneUI”
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#getUIClassID--"><code>JComponent.getUIClassID()</code></a> ，
<a href="../../javax/swing/UIDefaults.html#getUI-javax.swing.JComponent-"><code>UIDefaults.getUI(javax.swing.JComponent)</code></a>
</dd>
</dl> </li>
</ul> <a name="createLayeredPane--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>createLayeredPane</h4> <pre>protected <a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a> createLayeredPane()</pre>
<div class="block">
<span>由构造函数调用方法创建默认值<code>layeredPane</code> 。</span>
<span>Bt默认它创建一个新的<code>JLayeredPane</code> 。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
默认为
<code>layeredPane</code>
</dd>
</dl> </li>
</ul> <a name="createContentPane--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>createContentPane</h4> <pre>protected <a href="../../java/awt/Container.html" title="class in java.awt">Container</a> createContentPane()</pre>
<div class="block">
<span>由构造函数调用方法创建默认的<code>contentPane</code> 。</span>
<span>默认情况下，此方法创建一个新的<code>JComponent</code>添加一个<code>BorderLayout</code>作为其<code>LayoutManager</code> 。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
默认为
<code>contentPane</code>
</dd>
</dl> </li>
</ul> <a name="createGlassPane--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>createGlassPane</h4> <pre>protected <a href="../../java/awt/Component.html" title="class in java.awt">Component</a> createGlassPane()</pre>
<div class="block">
<span>由构造函数调用方法创建默认的<code>glassPane</code> 。</span>
<span>默认情况下，此方法创建一个新的<code>JComponent</code> ，其可见性设置为false。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
默认为
<code>glassPane</code>
</dd>
</dl> </li>
</ul> <a name="createRootLayout--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>createRootLayout</h4> <pre>protected <a href="../../java/awt/LayoutManager.html" title="interface in java.awt">LayoutManager</a> createRootLayout()</pre>
<div class="block">
由构造函数调用方法创建默认的
<code>layoutManager</code> 。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
默认为
<code>layoutManager</code> 。
</dd>
</dl> </li>
</ul> <a name="setJMenuBar-javax.swing.JMenuBar-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setJMenuBar</h4> <pre>public void setJMenuBar(<a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> menu)</pre>
<div class="block">
添加或更改分层窗格中使用的菜单栏。
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>menu</code> -
<code>JMenuBar</code>加
</dd>
</dl> </li>
</ul> <a name="setMenuBar-javax.swing.JMenuBar-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setMenuBar</h4> <pre><a href="../../java/lang/Deprecated.html" title="annotation in java.lang">@Deprecated</a>
public void setMenuBar(<a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> menu)</pre>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<span><span class="deprecationComment">从Swing版本1.0.3替换为<code>setJMenuBar(JMenuBar menu)</code> 。</span></span>
</div>
<div class="block">
指定菜单栏值。
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>menu</code> - 加
<code>JMenuBar</code> 。
</dd>
</dl> </li>
</ul> <a name="getJMenuBar--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getJMenuBar</h4> <pre>public <a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> getJMenuBar()</pre>
<div class="block">
从分层窗格返回菜单栏。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
在窗格中使用的
<code>JMenuBar</code>
</dd>
</dl> </li>
</ul> <a name="getMenuBar--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getMenuBar</h4> <pre><a href="../../java/lang/Deprecated.html" title="annotation in java.lang">@Deprecated</a>
public <a href="../../javax/swing/JMenuBar.html" title="class in javax.swing">JMenuBar</a> getMenuBar()</pre>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<span><span class="deprecationComment">从Swing版本1.0.3替换为<code>getJMenuBar()</code> 。</span></span>
</div>
<div class="block">
返回菜单栏值。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
在窗格中使用的
<code>JMenuBar</code>
</dd>
</dl> </li>
</ul> <a name="setContentPane-java.awt.Container-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setContentPane</h4> <pre>public void setContentPane(<a href="../../java/awt/Container.html" title="class in java.awt">Container</a> content)</pre>
<div class="block">
<span>设置内容窗格 - 保存由根窗格加载的组件的容器。</span>
<p> <span>Swing的绘画架构需要在<code>JComponent</code>中不透明的JComponent。</span> <span>这通常由内容窗格提供。</span> <span>如果更换内容窗格，建议将其替换为不透明的<code>JComponent</code> 。</span> </p>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>content</code> -在
<code>Container</code>要使用组件的内容
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/awt/IllegalComponentStateException.html" title="class in java.awt">IllegalComponentStateException</a></code> - （运行时异常），如果内容窗格参数是
<code>null</code>
</dd>
</dl> </li>
</ul> <a name="getContentPane--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getContentPane</h4> <pre>public <a href="../../java/awt/Container.html" title="class in java.awt">Container</a> getContentPane()</pre>
<div class="block">
返回内容窗格 - 保存由根窗格父化的组件的容器。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
所述
<code>Container</code>保持所述组件的内容
</dd>
</dl> </li>
</ul> <a name="setLayeredPane-javax.swing.JLayeredPane-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setLayeredPane</h4> <pre>public void setLayeredPane(<a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a> layered)</pre>
<div class="block">
<span>设置根窗格的分层窗格。</span>
<span>分层窗格通常保存内容窗格和可选的<code>JMenuBar</code> 。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>layered</code> -
<code>JLayeredPane</code>使用
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/awt/IllegalComponentStateException.html" title="class in java.awt">IllegalComponentStateException</a></code> - （运行时异常）如果分层窗格参数为
<code>null</code>
</dd>
</dl> </li>
</ul> <a name="getLayeredPane--">
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<ul class="blockList">
<li class="blockList"> <h4>getLayeredPane</h4> <pre>public <a href="../../javax/swing/JLayeredPane.html" title="class in javax.swing">JLayeredPane</a> getLayeredPane()</pre>
<div class="block">
<span>获取根窗格使用的分层窗格。</span>
<span>分层窗格通常保存内容窗格和可选的<code>JMenuBar</code> 。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
目前
<code>JLayeredPane</code>使用的
<code>JLayeredPane</code>
</dd>
</dl> </li>
</ul> <a name="setGlassPane-java.awt.Component-">
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<ul class="blockList">
<li class="blockList"> <h4>setGlassPane</h4> <pre>public void setGlassPane(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> glass)</pre>
<div class="block">
<span>设置指定的<code>Component</code>成为这根窗格玻璃板。</span>
<span>玻璃窗格通常应该是一个轻量级的透明组件，因为当根窗格需要抓取输入事件时，它将被显示。</span>
<p> <span>新的玻璃窗格的可见性已更改为与当前玻璃窗格相匹配。</span> <span>这意味着，当您要更换玻璃窗格并使其可见时，必须小心。</span> <span>以下任何一种都可以工作：</span> </p>
<pre> <span>root.setGlassPane(newGlassPane);
newGlassPane.setVisible(true);</span> </pre>
<span>要么：</span>
<pre> <span>root.getGlassPane().setVisible(true);
root.setGlassPane(newGlassPane);</span> </pre>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>glass</code> -
<code>Component</code>用作这个
<code>JRootPane</code>
</dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/NullPointerException.html" title="class in java.lang">NullPointerException</a></code> - 如果
<code>glass</code>参数是
<code>null</code>
</dd>
</dl> </li>
</ul> <a name="getGlassPane--">
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<ul class="blockList">
<li class="blockList"> <h4>getGlassPane</h4> <pre>public <a href="../../java/awt/Component.html" title="class in java.awt">Component</a> getGlassPane()</pre>
<div class="block">
返回此
<code>JRootPane</code>的当前玻璃窗格。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
当前的玻璃窗格
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JRootPane.html#setGlassPane-java.awt.Component-"><code>setGlassPane(java.awt.Component)</code></a>
</dd>
</dl> </li>
</ul> <a name="isValidateRoot--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>isValidateRoot</h4> <pre>public boolean isValidateRoot()</pre>
<div class="block">
<span>如果这个JRootPane的<code>JRootPane</code>打电话<code>revalidate</code> ，从这里下来验证。</span>
<p> <span>延迟请求再次布置组件及其后代。</span> <span>例如，调用<code>revalidate</code> ，被推到<code>JRootPane</code>或<code>JScrollPane</code> ，因为这两个类覆盖<code>isValidateRoot</code>以返回true。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#isValidateRoot--">isValidateRoot</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
真正
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#isValidateRoot--"><code>JComponent.isValidateRoot()</code></a> ，
<a href="../../java/awt/Container.html#isValidateRoot--"><code>Container.isValidateRoot()</code></a>
</dd>
</dl> </li>
</ul> <a name="isOptimizedDrawingEnabled--">
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<ul class="blockList">
<li class="blockList"> <h4>isOptimizedDrawingEnabled</h4> <pre>public boolean isOptimizedDrawingEnabled()</pre>
<div class="block">
<span><code>glassPane</code>和<code>contentPane</code>具有相同的界限，这意味着<code>JRootPane</code>不会<code>JRootPane</code> ，这应该返回false。</span>
<span>另一方面， <code>glassPane</code>通常不可见，因此如果<code>glassPane</code>不可见，则可以返回true。</span>
<span>因此，这里的返回值取决于glassPane的<code>glassPane</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#isOptimizedDrawingEnabled--">isOptimizedDrawingEnabled</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
如果此组件的子项不重叠，则为true
</dd>
</dl> </li>
</ul> <a name="addNotify--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>addNotify</h4> <pre>public void addNotify()</pre>
<div class="block">
<span>通知此组件它现在有一个父组件。</span>
<span>当调用此方法时，父组件链由<code>KeyboardAction</code>事件侦听器设置。</span>
<span>该方法在内部被工具包调用，不应该被程序直接调用。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#addNotify--">addNotify</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#registerKeyboardAction-java.awt.event.ActionListener-java.lang.String-javax.swing.KeyStroke-int-"><code>JComponent.registerKeyboardAction(java.awt.event.ActionListener, java.lang.String, javax.swing.KeyStroke, int)</code></a>
</dd>
</dl> </li>
</ul> <a name="removeNotify--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>removeNotify</h4> <pre>public void removeNotify()</pre>
<div class="block">
<span>通知此组件它不再具有父组件。</span>
<span>当调用此方法时，将删除在父组件链中设置的任何<code>KeyboardAction</code> 。</span>
<span>该方法在内部被工具包调用，不应该被程序直接调用。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#removeNotify--">removeNotify</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#registerKeyboardAction-java.awt.event.ActionListener-java.lang.String-javax.swing.KeyStroke-int-"><code>JComponent.registerKeyboardAction(java.awt.event.ActionListener, java.lang.String, javax.swing.KeyStroke, int)</code></a>
</dd>
</dl> </li>
</ul> <a name="setDefaultButton-javax.swing.JButton-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setDefaultButton</h4> <pre>public void setDefaultButton(<a href="../../javax/swing/JButton.html" title="class in javax.swing">JButton</a> defaultButton)</pre>
<div class="block">
<span>设置<code>defaultButton</code>属性，它确定这个当前的默认按钮<code>JRootPane</code> 。</span>
<span>默认按钮是在根界面中发生UI定义的激活事件（通常为<b>Enter</b>键）时将激活的按钮，无论按钮是否具有键盘焦点（除非根窗格中有另一个组件消耗激活事件，如<code>JTextPane</code> ）。</span>
<span>要使默认激活工作，当激活发生时，该按钮必须是根窗格的启用后代。</span>
<span>要从此根窗格中删除默认按钮，请将此属性设置为<code>null</code> 。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>defaultButton</code> -
<code>JButton</code>哪个是默认按钮
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JButton.html#isDefaultButton--"><code>JButton.isDefaultButton()</code></a>
</dd>
</dl> </li>
</ul> <a name="getDefaultButton--">
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<ul class="blockList">
<li class="blockList"> <h4>getDefaultButton</h4> <pre>public <a href="../../javax/swing/JButton.html" title="class in javax.swing">JButton</a> getDefaultButton()</pre>
<div class="block">
返回
<code>defaultButton</code>属性的值。
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>JButton</code>是目前的默认按钮
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JRootPane.html#setDefaultButton-javax.swing.JButton-"><code>setDefaultButton(javax.swing.JButton)</code></a>
</dd>
</dl> </li>
</ul> <a name="addImpl-java.awt.Component-java.lang.Object-int-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>addImpl</h4> <pre>protected void addImpl(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> comp,
<a href="../../java/lang/Object.html" title="class in java.lang">Object</a> constraints,
int index)</pre>
<div class="block">
覆盖以执行玻璃部件的位置作为零子。
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Container.html#addImpl-java.awt.Component-java.lang.Object-int-">addImpl</a></code>在
<code><a href="../../java/awt/Container.html" title="class in java.awt">Container</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>comp</code> - 要增强的组件
</dd>
<dd>
<code>constraints</code> - 要遵守的约束
</dd>
<dd>
<code>index</code> - 指数
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../java/awt/Container.html#add-java.awt.Component-"><code>Container.add(Component)</code></a> ， <a href="../../java/awt/Container.html#add-java.awt.Component-int-"><code>Container.add(Component, int)</code></a> ， <a href="../../java/awt/Container.html#add-java.awt.Component-java.lang.Object-"><code>Container.add(Component, java.lang.Object)</code></a> ， <a href="../../java/awt/Container.html#invalidate--"><code>Container.invalidate()</code></a> ， <a href="../../java/awt/LayoutManager.html" title="java.awt中的接口"><code>LayoutManager</code></a> ， <a href="../../java/awt/LayoutManager2.html" title="java.awt中的接口"><code>LayoutManager2</code></a></span>
</dd>
</dl> </li>
</ul> <a name="paramString--">
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<ul class="blockList">
<li class="blockList"> <h4>paramString</h4> <pre>protected <a href="../../java/lang/String.html" title="class in java.lang">String</a> paramString()</pre>
<div class="block">
<span>返回此<code>JRootPane</code>的字符串表示<code>JRootPane</code> 。</span>
<span>该方法仅用于调试目的，并且返回的字符串的内容和格式可能因实现而异。</span>
<span>返回的字符串可能为空，但可能不是<code>null</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#paramString--">paramString</a></code>在
<code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
这个
<code>JRootPane</code>的字符串表示
<code>JRootPane</code> 。
</dd>
</dl> </li>
</ul> <a name="getAccessibleContext--">
<!-- --> </a>
<ul class="blockListLast">
<li class="blockList"> <h4>getAccessibleContext</h4> <pre>public <a href="../../javax/accessibility/AccessibleContext.html" title="class in javax.accessibility">AccessibleContext</a> getAccessibleContext()</pre>
<div class="block">
<span>获取<code>AccessibleContext</code>与此相关<code>JRootPane</code> 。</span>
<span>为根窗格，所述<code>AccessibleContext</code>需要一个的形式<code>AccessibleJRootPane</code> 。</span>
<span>如有必要，将创建一个新的<code>AccessibleJRootPane</code>实例。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/accessibility/Accessible.html#getAccessibleContext--">getAccessibleContext</a></code>在界面
<code><a href="../../javax/accessibility/Accessible.html" title="interface in javax.accessibility">Accessible</a></code>
</dd>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Component.html#getAccessibleContext--">getAccessibleContext</a></code>在
<code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
一个
<code>AccessibleJRootPane</code>作为这个
<code>AccessibleContext</code>的
<code>JRootPane</code>
</dd>
</dl> </li>
</ul> </li>
</ul> </li>
</ul>
</div>
</div>
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