ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Mapping.Events Namespace / ViewingModeChangedEventArgs Class / ViewingMode Property

ViewingMode Property (ViewingModeChangedEventArgs)
Gets the new ViewingMode.
Syntax
public MapViewingMode ViewingMode {get;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also