--- a/src/main/java/jp/ac/u_ryukyu/treevnc/MyRfbProto.java	Sun Jun 22 16:48:38 2014 +0900
+++ b/src/main/java/jp/ac/u_ryukyu/treevnc/MyRfbProto.java	Sun Jun 22 19:05:04 2014 +0900
@@ -55,6 +55,7 @@
     private boolean firstTime = true;
     private TreeRootFinderListener getCast;
     private CreateConnectionParam cp;
+    private boolean hasViewer = false;
 
 
 	public MyRfbProto() {
@@ -649,7 +650,7 @@
     }
 
     public void initRoot(ViewerInterface vncProxyService, String hostName) {
-    	treeManager = new TreeManagement(hostName, ConnectionParams.DEFAULT_VNC_ROOT,this);
+    	treeManager = new TreeManagement(hostName, ConnectionParams.DEFAULT_VNC_ROOT);
         vncProxyService.initRootViewer(hostName);
     	createConnectionAndStart(vncProxyService);
     }
@@ -666,5 +667,13 @@
         return cp;
     }
 
+    public boolean hasViewer() {
+        return hasViewer;
+    }
+
+    public void setHasViewer(boolean b) {
+        hasViewer = b;
+    }
+
 	
 }