ArcMapAddinVisibility.MapPointTool.OnMouseMove C# (CSharp) Method

        protected override void OnMouseMove(MouseEventArgs arg)
        {
            IActiveView activeView = ArcMap.Document.FocusMap as IActiveView;

            var point = activeView.ScreenDisplay.DisplayTransformation.ToMapPoint(arg.X, arg.Y) as IPoint;

            Mediator.NotifyColleagues(Constants.MOUSE_MOVE_POINT, point);
        }