improve log.

Assets/uDesktopDuplication/Scripts/Lib.cs

@@ -37,6 +37,7 @@ public enum MonitorState
 	CurrentlyNotAvailable = 4,
 	SessionDisconnected = 5,
 	AccessLost = 6,
+    Unknown = 999,
 }
 
 public enum DebugMode

Assets/uDesktopDuplication/Scripts/Monitor.cs

@@ -12,22 +12,25 @@ public class Monitor
 
         switch (state)
         {
+            case MonitorState.Available:
+                break;
             case MonitorState.InvalidArg:
                 Debug.LogErrorFormat("[uDD] {0}:{1} => Invalid.", id, name);
                 break;
             case MonitorState.AccessDenied:
-                Debug.LogErrorFormat("[uDD] {0}:{1} => Access Denied.", id, name);
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Access Denied.", id, name);
                 break;
             case MonitorState.Unsupported:
-                Debug.LogErrorFormat("[uDD] {0}:{1} => Unsupported.", id, name);
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Unsupported.", id, name);
                 break;
             case MonitorState.SessionDisconnected:
-                Debug.LogErrorFormat("[uDD] {0}:{1} => Disconnected.", id, name);
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Disconnected.", id, name);
                 break;
             case MonitorState.NotSet:
                 Debug.LogErrorFormat("[uDD] {0}:{1} => Something wrong.", id, name);
                 break;
             default:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Unknown error.", id, name);
                 break;
         }