component.accessibleawtcomponent.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN""http://www.w3.org/TR/REC-html40/frameset.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Thu Apr 27 23:32:26 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class Component.AccessibleAWTComponent</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../stylesheet.css" TITLE="Style"></HEAD><BODY BGCOLOR="white"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/Component.AccessibleAWTComponent.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../index-files/index-1.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><b>Java<sup><font size=-2>TM</font></sup> 2 Platform<br>Std. Ed. v1.3</b></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../java/awt/Component.html"><B>PREV CLASS</B></A> <A HREF="../../java/awt/Component.AccessibleAWTComponent.AccessibleAWTComponentHandler.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="Component.AccessibleAWTComponent.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: <A HREF="#inner_class_summary">INNER</A> | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">java.awt</FONT><BR>Class Component.AccessibleAWTComponent</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../../javax/accessibility/AccessibleContext.html">javax.accessibility.AccessibleContext</A> | +--<B>java.awt.Component.AccessibleAWTComponent</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../javax/accessibility/AccessibleComponent.html">AccessibleComponent</A>, <A HREF="../../java/io/Serializable.html">Serializable</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../javax/swing/Box.Filler.AccessibleBoxFiller.html">Box.Filler.AccessibleBoxFiller</A>, <A HREF="../../java/awt/Button.AccessibleAWTButton.html">Button.AccessibleAWTButton</A>, <A HREF="../../java/awt/Canvas.AccessibleAWTCanvas.html">Canvas.AccessibleAWTCanvas</A>, <A HREF="../../java/awt/Checkbox.AccessibleAWTCheckbox.html">Checkbox.AccessibleAWTCheckbox</A>, <A HREF="../../java/awt/Choice.AccessibleAWTChoice.html">Choice.AccessibleAWTChoice</A>, <A HREF="../../java/awt/Container.AccessibleAWTContainer.html">Container.AccessibleAWTContainer</A>, <A HREF="../../java/awt/Label.AccessibleAWTLabel.html">Label.AccessibleAWTLabel</A>, <A HREF="../../java/awt/List.AccessibleAWTList.html">List.AccessibleAWTList</A>, <A HREF="../../java/awt/List.AccessibleAWTList.AccessibleAWTListChild.html">List.AccessibleAWTList.AccessibleAWTListChild</A>, <A HREF="../../java/awt/Scrollbar.AccessibleAWTScrollBar.html">Scrollbar.AccessibleAWTScrollBar</A>, <A HREF="../../java/awt/TextComponent.AccessibleAWTTextComponent.html">TextComponent.AccessibleAWTTextComponent</A></DD></DL><DL><DT><B>Enclosing class: </B><DD><A HREF="../../java/awt/Component.html">Component</A></DD></DL><HR><DL><DT>protected abstract class <B>Component.AccessibleAWTComponent</B><DT>extends <A HREF="../../javax/accessibility/AccessibleContext.html">AccessibleContext</A><DT>implements <A HREF="../../java/io/Serializable.html">Serializable</A>, <A HREF="../../javax/accessibility/AccessibleComponent.html">AccessibleComponent</A></DL><P>Inner class of Component used to provide default support for accessibility. This class is not meant to be used directly by application developers, but is instead meant only to be subclassed by component developers. <p> The class used to obtain the accessible role for this object.<P><DL><DT><B>See Also: </B><DD><A HREF="../../serialized-form.html#java.awt.Component.AccessibleAWTComponent">Serialized Form</A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><A NAME="inner_class_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Inner Class Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected class</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.AccessibleAWTComponentHandler.html">Component.AccessibleAWTComponent.AccessibleAWTComponentHandler</A></B></CODE><BR> Fire PropertyChange listener, if one is registered, when shown/hidden..</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected class</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.AccessibleAWTFocusHandler.html">Component.AccessibleAWTComponent.AccessibleAWTFocusHandler</A></B></CODE><BR> Fire PropertyChange listener, if one is registered, when focus events happen</TD></TR></TABLE> <!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../java/awt/event/ComponentListener.html">ComponentListener</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#accessibleAWTComponentHandler">accessibleAWTComponentHandler</A></B></CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected <A HREF="../../java/awt/event/FocusListener.html">FocusListener</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#accessibleAWTFocusHandler">accessibleAWTFocusHandler</A></B></CODE><BR> </TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.accessibility.AccessibleContext"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class javax.accessibility.<A HREF="../../javax/accessibility/AccessibleContext.html">AccessibleContext</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_ACTION_PROPERTY">ACCESSIBLE_ACTION_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY">ACCESSIBLE_ACTIVE_DESCENDANT_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_CARET_PROPERTY">ACCESSIBLE_CARET_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_CHILD_PROPERTY">ACCESSIBLE_CHILD_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_DESCRIPTION_PROPERTY">ACCESSIBLE_DESCRIPTION_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_NAME_PROPERTY">ACCESSIBLE_NAME_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_SELECTION_PROPERTY">ACCESSIBLE_SELECTION_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_STATE_PROPERTY">ACCESSIBLE_STATE_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_CAPTION_CHANGED">ACCESSIBLE_TABLE_CAPTION_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED">ACCESSIBLE_TABLE_COLUMN_DESCRIPTION_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED">ACCESSIBLE_TABLE_COLUMN_HEADER_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_MODEL_CHANGED">ACCESSIBLE_TABLE_MODEL_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED">ACCESSIBLE_TABLE_ROW_DESCRIPTION_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_ROW_HEADER_CHANGED">ACCESSIBLE_TABLE_ROW_HEADER_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TABLE_SUMMARY_CHANGED">ACCESSIBLE_TABLE_SUMMARY_CHANGED</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_TEXT_PROPERTY">ACCESSIBLE_TEXT_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_VALUE_PROPERTY">ACCESSIBLE_VALUE_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#ACCESSIBLE_VISIBLE_DATA_PROPERTY">ACCESSIBLE_VISIBLE_DATA_PROPERTY</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#accessibleDescription">accessibleDescription</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#accessibleName">accessibleName</A>, <A HREF="../../javax/accessibility/AccessibleContext.html#accessibleParent">accessibleParent</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>protected </CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#Component.AccessibleAWTComponent(java.awt.Component)">Component.AccessibleAWTComponent</A></B>()</CODE><BR> Though the class is abstract, this should be called by all sub-classes.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#addFocusListener(java.awt.event.FocusListener)">addFocusListener</A></B>(<A HREF="../../java/awt/event/FocusListener.html">FocusListener</A> l)</CODE><BR> Adds the specified focus listener to receive focus events from this component.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#addPropertyChangeListener(java.beans.PropertyChangeListener)">addPropertyChangeListener</A></B>(<A HREF="../../java/beans/PropertyChangeListener.html">PropertyChangeListener</A> listener)</CODE><BR> Add a PropertyChangeListener to the listener list.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> boolean</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#contains(java.awt.Point)">contains</A></B>(<A HREF="../../java/awt/Point.html">Point</A> p)</CODE><BR> Checks whether the specified point is within this object's bounds, where the point's x and y coordinates are defined to be relative to the coordinate system of the object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/accessibility/Accessible.html">Accessible</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleAt(java.awt.Point)">getAccessibleAt</A></B>(<A HREF="../../java/awt/Point.html">Point</A> p)</CODE><BR> Returns the Accessible child, if one exists, contained at the local coordinate Point.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/accessibility/Accessible.html">Accessible</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleChild(int)">getAccessibleChild</A></B>(int i)</CODE><BR> Return the nth Accessible child of the object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> int</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleChildrenCount()">getAccessibleChildrenCount</A></B>()</CODE><BR> Returns the number of accessible children in the object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../javax/accessibility/AccessibleComponent.html">AccessibleComponent</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/Component.AccessibleAWTComponent.html#getAccessibleComponent()">getAccessibleComponent</A></B>()</CODE><BR> Get the AccessibleComponent associated with this object if one exists.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">⌨️ 快捷键说明
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