ChartObjectHoverChangedEventArgs

 using cAlgo.API;
 namespace cAlgo
 {
     // This example shows how to use the Chart ChartObjectHoverChangedEventArgs
     // ChartObjectHoverChangedEventArgs is derived from ChartObjectsEventArgs
     // Draw an object and move mouse over it
     [Indicator(IsOverlay = true, TimeZone = TimeZones.UTC, AccessRights = AccessRights.None)]
     public class ChartObjectHoverChangedEventArgsSample : Indicator
     {
         protected override void Initialize()
         {
             Chart.ObjectHoverChanged += Chart_ObjectHoverChanged;
         }
         private void Chart_ObjectHoverChanged(ChartObjectHoverChangedEventArgs obj)
         {
             Chart.DrawStaticText("hover", string.Format("Is Object Hovered: {0}", obj.IsObjectHovered), VerticalAlignment.Top, HorizontalAlignment.Right, Color.Red);
         }
         public override void Calculate(int index)
         {
         }
     }
 }

 import clr
 clr.AddReference("cAlgo.API")
 from cAlgo.API import *
 class Test():    
     def initialize(self):
         api.Chart.ObjectHoverChanged += self.on_chart_object_hover_changed
     def on_chart_object_hover_changed(self, args):
         api.Chart.DrawStaticText("hover", f"Is Object Hovered: {args.IsObjectHovered}", VerticalAlignment.Top, HorizontalAlignment.Right, Color.Red)