ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Core Namespace / CustomItemBase Class / LargeImage Property
Version

LargeImage Property (CustomItemBase)
Gets the large image. Override to provide a custom large image
Syntax
public virtual ImageSource LargeImage {get;}
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also