ArgumentException: Object serialized to String. JObject instance expected.
--Message: Object serialized to String. JObject instance expected.
StackTrace:
   在 Newtonsoft.Json.Linq.JObject.FromObject(Object o, JsonSerializer jsonSerializer)
   在 DynamicClass.AddRectMark(Point startPos, Point endPos, String name, JObject data)
   在 DynamicClass.OnMouseMove(Point pos)
   在 DynamicClass.GlobalMouseHook.MouseHookCallback(Int32 nCode, IntPtr wParam, IntPtr lParam)