src/java.desktop/windows/classes/sun/awt/windows/WLightweightFramePeer.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2017, 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

@@ -30,14 +30,15 @@
 import java.awt.dnd.DropTarget;
 import java.awt.event.ComponentEvent;
 import java.awt.event.MouseEvent;
 
 import sun.awt.LightweightFrame;
+import sun.awt.OverrideNativeWindowHandle;
 import sun.swing.JLightweightFrame;
 import sun.swing.SwingAccessor;
 
-public class WLightweightFramePeer extends WFramePeer {
+public class WLightweightFramePeer extends WFramePeer implements OverrideNativeWindowHandle {
 
     public WLightweightFramePeer(LightweightFrame target) {
         super(target);
     }
 

@@ -48,10 +49,17 @@
     @Override
     public Graphics getGraphics() {
         return getLwTarget().getGraphics();
     }
 
+    private native void overrideNativeHandle(long hwnd);
+
+    @Override
+    public void overrideWindowHandle(final long handle) {
+        overrideNativeHandle(handle);
+    }
+
     @Override
     public void show() {
         super.show();
         postEvent(new ComponentEvent((Component)getTarget(), ComponentEvent.COMPONENT_SHOWN));
     }