ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMMarkerPlacementInsidePolygon Class / Clipping Property

Clipping Property
Gets or sets the clipping option which specifies how markers should be clipped at the polygon boundary.
Syntax
public PlacementClip Clipping {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also