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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 23:33:29 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class MouseEvent</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/MouseEvent.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/event/MouseAdapter.html"><B>PREV CLASS</B></A> <A HREF="../../../java/awt/event/MouseMotionAdapter.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="MouseEvent.html" TARGET="_top"><B>NO FRAMES</B></A></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: INNER | <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.event</FONT><BR>Class MouseEvent</H2><PRE><A HREF="../../../java/lang/Object.html">java.lang.Object</A> | +--<A HREF="../../../java/util/EventObject.html">java.util.EventObject</A> | +--<A HREF="../../../java/awt/AWTEvent.html">java.awt.AWTEvent</A> | +--<A HREF="../../../java/awt/event/ComponentEvent.html">java.awt.event.ComponentEvent</A> | +--<A HREF="../../../java/awt/event/InputEvent.html">java.awt.event.InputEvent</A> | +--<B>java.awt.event.MouseEvent</B></PRE><DL><DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../java/io/Serializable.html">Serializable</A></DD></DL><DL><DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../javax/swing/event/MenuDragMouseEvent.html">MenuDragMouseEvent</A></DD></DL><HR><DL><DT>public class <B>MouseEvent</B><DT>extends <A HREF="../../../java/awt/event/InputEvent.html">InputEvent</A></DL><P>/** An event which indicates that a mouse action occurred in a component. This event is used both for mouse events (click, enter, exit) and mouse motion events (moves and drags). <P> This low-level event is generated by a component object for: <ul> <li>Mouse Events <ul> <li>a mouse button is pressed <li>a mouse button is released <li>a mouse button is clicked (pressed and released) <li>the mouse cursor enters a component <li>the mouse cursor exits a component </ul> <li> Mouse Motion Events <ul> <li>the mouse is moved <li>the mouse is dragged </ul> </ul> <P> A MouseEvent object is passed to every <code>MouseListener</code> or <code>MouseAdapter</code> object which registered to receive the "interesting" mouse events using the component's <code>addMouseListener</code> method. (<code>MouseAdapter</code> objects implement the <code>MouseListener</code> interface.) Each such listener object gets a <code>MouseEvent</code> containing the mouse event. <P> A MouseEvent object is also passed to every <code>MouseMotionListener</code> or <code>MouseMotionAdapter</code> object which registered to receive mouse motion events using the component's <code>addMouseMotionListener</code> method. (<code>MouseMotionAdapter</code> objects implement the <code>MouseMotionListener</code> interface.) Each such listener object gets a <code>MouseEvent</code> containing the mouse motion event. <P> When a mouse button is clicked, events are generated and sent to the registered MouseListeners, with the button mask set in the modifier field. For example, if the first mouse button is pressed, events are sent in the following order: <PRE> MOUSE_PRESSED: BUTTON1_MASK MOUSE_RELEASED: BUTTON1_MASK MOUSE_CLICKED: BUTTON1_MASK </PRE> When multiple mouse buttons are pressed, each press, release, and click results in a separate event. The button mask in the modifier field reflects only the button that changed state, not the current state of all buttons. <P> For example, if the user presses button 1 followed by button 2 and releases them in the same order, the following sequence of events is generated: <PRE> MOUSE_PRESSED: BUTTON1_MASK MOUSE_PRESSED: BUTTON2_MASK MOUSE_RELEASED: BUTTON1_MASK MOUSE_CLICKED: BUTTON1_MASK MOUSE_RELEASED: BUTTON2_MASK MOUSE_CLICKED: BUTTON2_MASK </PRE> If button2 is released first, the MOUSE_RELEASED/MOUSE_CLICKED pair for BUTTON2_MASK arrives first, followed by the pair for BUTTON1_MASK.<P><DL><DT><B>Since: </B><DD>1.1</DD><DT><B>See Also: </B><DD><A HREF="../../../java/awt/event/MouseAdapter.html"><CODE>MouseAdapter</CODE></A>, <A HREF="../../../java/awt/event/MouseListener.html"><CODE>MouseListener</CODE></A>, <A HREF="../../../java/awt/event/MouseMotionAdapter.html"><CODE>MouseMotionAdapter</CODE></A>, <A HREF="../../../java/awt/event/MouseMotionListener.html"><CODE>MouseMotionListener</CODE></A>, <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/mouselistener.html">Tutorial: Writing a Mouse Listener</a>, <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/mousemotionlistener.html">Tutorial: Writing a Mouse Motion Listener</a>, <a href="http://www.awl.com/cp/javaseries/jcl1_2.html">Reference: The Java Class Libraries (update file)</a>, <A HREF="../../../serialized-form.html#java.awt.event.MouseEvent">Serialized Form</A></DL><HR><P><!-- ======== INNER CLASS SUMMARY ======== --><!-- =========== 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>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_CLICKED">MOUSE_CLICKED</A></B></CODE><BR> The "mouse clicked" event.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_DRAGGED">MOUSE_DRAGGED</A></B></CODE><BR> The "mouse dragged" event.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_ENTERED">MOUSE_ENTERED</A></B></CODE><BR> The "mouse entered" event.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_EXITED">MOUSE_EXITED</A></B></CODE><BR> The "mouse exited" event.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_FIRST">MOUSE_FIRST</A></B></CODE><BR> The first number in the range of ids used for mouse events.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_LAST">MOUSE_LAST</A></B></CODE><BR> The last number in the range of ids used for mouse events.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../java/awt/event/MouseEvent.html#MOUSE_MOVED">MOUSE_MOVED</A></B></CODE><BR> The "mouse moved" event.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD>⌨️ 快捷键说明
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