ArcGIS Pro 2.1 API Reference Guide
CIMBalloonCallout Class
Members 

ArcGIS.Core.CIM Namespace : CIMBalloonCallout Class
Represents a balloon callout. Balloon callouts are a filled background that is placed behind text. They may or may not have a leader line connecting the callout to an anchor point.
Object Model
CIMBalloonCallout ClassCIMPolygonSymbol ClassCIMBalloonCallout ClassCIMTextMargin Class
Syntax
Inheritance Hierarchy

System.Object
   ArcGIS.Core.CIM.CIMObject
      ArcGIS.Core.CIM.CIMCallout
         ArcGIS.Core.CIM.CIMBalloonCallout

Requirements

Target Platforms:Windows 10, Windows 8.1, Windows 7

See Also

Reference

CIMBalloonCallout Members
ArcGIS.Core.CIM Namespace