添加项目文件。

JinYuan.ControlLib/UserStateChangedEvent.cs

@@ -0,0 +1,24 @@
+using System;
+
+namespace JinYuan.ControlLib
+{
+    public delegate void UserStateChangedEventHandler(
+        object sender,
+        UserStateChangedEventArgs e);
+
+    public class UserStateChangedEventArgs : EventArgs
+    {
+        private bool _active;
+
+        public UserStateChangedEventArgs(bool active)
+            : base()
+        {
+            _active = active;
+        }
+
+        public bool Active
+        {
+            get { return _active; }
+        }
+    }
+}