JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package java.awt.peer;

import java.awt.Window;
import java.awt.Point;

/**
 * Peer interface for {@link MouseInfo}. This is used to get some additional
 * information about the mouse.
 *
 * The peer interfaces are intended only for use in porting
 * the AWT. They are not intended for use by application
 * developers, and developers should not implement peers
 * nor invoke any of the peer methods directly on the peer
 * instances.
 */
public interface MouseInfoPeer {

    /**
     * This method does two things: it fills the point fields with
     * the current coordinates of the mouse cursor and returns the
     * number of the screen device where the pointer is located.
     * The number of the screen device is only returned for independent
     * devices (which are not parts of a virtual screen device).
     * For virtual screen devices, 0 is returned.
     * Mouse coordinates are also calculated depending on whether
     * or not the screen device is virtual. For virtual screen
     * devices, pointer coordinates are calculated in the virtual
     * coordinate system. Otherwise, coordinates are calculated in
     * the coordinate system of the screen device where the pointer
     * is located.
     * See java.awt.GraphicsConfiguration documentation for more
     * details about virtual screen devices.
     */
    int fillPointWithCoords(Point point);

    /**

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