ArcGIS Pro 2.7 API Reference Guide
ProjectClosingEvent Class
Members 

ArcGIS.Desktop.Core.Events Namespace : ProjectClosingEvent Class
Occurs when a project is in the process of closing
Object Model
ProjectClosingEvent ClassSubscriptionToken ClassSubscriptionToken Class
Syntax
Inheritance Hierarchy

System.Object
   ArcGIS.Core.Events.EventBase
      ArcGIS.Core.Events.AsyncPresentationEvent<TPayload>
         ArcGIS.Desktop.Core.Events.ProjectClosingEvent

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

ProjectClosingEvent Members
ArcGIS.Desktop.Core.Events Namespace