graphicsdevice.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 23:32:40 PDT 2000 --><TITLE>Java 2 Platform SE v1.3: Class GraphicsDevice</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/GraphicsDevice.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/GraphicsConfiguration.html"><B>PREV CLASS</B></A> <A HREF="../../java/awt/GraphicsEnvironment.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="GraphicsDevice.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</FONT><BR>Class GraphicsDevice</H2><PRE><A HREF="../../java/lang/Object.html">java.lang.Object</A> | +--<B>java.awt.GraphicsDevice</B></PRE><HR><DL><DT>public abstract class <B>GraphicsDevice</B><DT>extends <A HREF="../../java/lang/Object.html">Object</A></DL><P>The <code>GraphicsDevice</code> class describes the graphics devices that might be available in a particular graphics environment. These include screen and printer devices. Note that there can be many screens and many printers in an instance of <A HREF="../../java/awt/GraphicsEnvironment.html"><CODE>GraphicsEnvironment</CODE></A>. Each graphics device has one or more <A HREF="../../java/awt/GraphicsConfiguration.html"><CODE>GraphicsConfiguration</CODE></A> objects associated with it. These objects specify the different configurations in which the <code>GraphicsDevice</code> can be used. <p> In a multi-screen environment, the <code>GraphicsConfiguration</code> objects can be used to render components on multiple screens. The following code sample demonstrates how to create a <code>JFrame</code> object for each <code>GraphicsConfiguration</code> on each screen device in the <code>GraphicsEnvironment</code>: <pre> GraphicsEnvironment ge = GraphicsEnvironment. getLocalGraphicsEnvironment(); GraphicsDevice[] gs = ge.getScreenDevices(); for (int j = 0; j < gs.length; j++) { GraphicsDevice gd = gs[j]; GraphicsConfiguration[] gc = gd.getConfigurations(); for (int i=0; i < gc.length; i++) { JFrame f = new JFrame(gs[j].getDefaultConfiguration()); Canvas c = new Canvas(gc[i]); Rectangle gcBounds = gc[i].getBounds(); int xoffs = gcBounds.x; int yoffs = gcBounds.y; f.getContentPane().add(c); f.setLocation((i*50)+xoffs, (i*60)+yoffs); f.show(); } } </pre><P><DL><DT><B>See Also: </B><DD><A HREF="../../java/awt/GraphicsEnvironment.html"><CODE>GraphicsEnvironment</CODE></A>, <A HREF="../../java/awt/GraphicsConfiguration.html"><CODE>GraphicsConfiguration</CODE></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/GraphicsDevice.html#TYPE_IMAGE_BUFFER">TYPE_IMAGE_BUFFER</A></B></CODE><BR> Device is an image buffer.</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/GraphicsDevice.html#TYPE_PRINTER">TYPE_PRINTER</A></B></CODE><BR> Device is a printer.</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/GraphicsDevice.html#TYPE_RASTER_SCREEN">TYPE_RASTER_SCREEN</A></B></CODE><BR> Device is a raster screen.</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/GraphicsDevice.html#GraphicsDevice()">GraphicsDevice</A></B>()</CODE><BR> This is an abstract class that cannot be instantiated directly.</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> <A HREF="../../java/awt/GraphicsConfiguration.html">GraphicsConfiguration</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/GraphicsDevice.html#getBestConfiguration(java.awt.GraphicsConfigTemplate)">getBestConfiguration</A></B>(<A HREF="../../java/awt/GraphicsConfigTemplate.html">GraphicsConfigTemplate</A> gct)</CODE><BR> Returns the "best" configuration possible that passes the criteria defined in the <A HREF="../../java/awt/GraphicsConfigTemplate.html"><CODE>GraphicsConfigTemplate</CODE></A>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract <A HREF="../../java/awt/GraphicsConfiguration.html">GraphicsConfiguration</A>[]</CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/GraphicsDevice.html#getConfigurations()">getConfigurations</A></B>()</CODE><BR> Returns all of the <code>GraphicsConfiguration</code> objects associated with this <code>GraphicsDevice</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract <A HREF="../../java/awt/GraphicsConfiguration.html">GraphicsConfiguration</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/GraphicsDevice.html#getDefaultConfiguration()">getDefaultConfiguration</A></B>()</CODE><BR> Returns the default <code>GraphicsConfiguration</code> associated with this <code>GraphicsDevice</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>abstract <A HREF="../../java/lang/String.html">String</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../java/awt/GraphicsDevice.html#getIDstring()">getIDstring</A></B>()</CODE><BR>⌨️ 快捷键说明
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