--- a/src/viewer_swing/java/com/glavsoft/viewer/Viewer.java	Sun Nov 18 18:47:14 2012 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/Viewer.java	Tue Dec 04 17:56:39 2012 +0900
@@ -49,6 +49,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.Socket;
+import java.net.UnknownHostException;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.jar.Attributes;
@@ -446,11 +447,14 @@
 		testButton.addActionListener(new ActionListener() {
 			@Override
 			public void actionPerformed(ActionEvent e) {
-				testKey(context);
+				try {
+					rfb.screenChangeRequest();
+				} catch (IOException e1) {
+					e1.printStackTrace();
+				}
 				setSurfaceToHandleKbdFocus();
 			}
 		});		
-
 		
 		
 		
@@ -604,9 +608,6 @@
 		context.sendMessage(new KeyEventMessage(Keymap.K_CTRL_LEFT, false));
 	}
 	
-	private void testKey(ProtocolContext context) {
-		System.out.println("test");
-	}
 
 	@Override
 	public void windowOpened(WindowEvent e) { /* nop */ }