ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.Data Namespace / QueryFilter Class / OutputSpatialReference Property

OutputSpatialReference Property (QueryFilter)
Gets or sets the spatial reference in which the features will be returned.
Syntax
public SpatialReference OutputSpatialReference {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.0 or higher.
See Also