--- a/src/viewer_swing/java/com/glavsoft/viewer/TreeViewer.java	Mon Apr 28 18:25:23 2014 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/TreeViewer.java	Tue Apr 29 11:26:36 2014 +0900
@@ -39,7 +39,7 @@
 				// use this on main display such as large tv.
 				treeProxy = true;
 				viewer = true;
-			} else if ("-v".equals(args[i])) {
+			} else if ("-v".equals(args[i]) || "-c".equals(args[i])) {
 				// behave as client.
 				// open display and connect to some tree node.
 				viewer = true;
@@ -62,13 +62,14 @@
 				hostName = args[++i];
 			} else {
 				System.out.println("(default) TreeVNCClient\n"
-						+ "-p:       TreeVNCProxy\n"
-						+ "-v:      VNCViewer\n"
-						+ "-r:      TreeVNCProxy for RemoteHost. you should input parameter host and port\n"
-						+ "--host hostname:  set host name\n"
-						+ "--retina:    TreeVNC proxy for retina.this mode can select screen range."
-						+ "--width w: set display width"
-						+ "--height h: set display height");
+						+ "-v or -c:         View shared screen.\n"
+						+ "-p:               Share my screen and behave as tree root.\n"
+						+ "-d:               Show shared screen and behave as tree root.\n"
+						+ "-r:               Connect to fix to specified host and port.\n"
+						+ "--host hostname:  Set host name.\n"
+						+ "--retina:         Limit screen size for very large display.\n"
+						+ "--width w:        Set display width.\n"
+						+ "--height h:       Set display height.\n");
 			}
 		}
 	}