ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Core.CIM Namespace / CIMTopoNorthArrow Class / GMAngle Property

GMAngle Property (CIMTopoNorthArrow)
Gets or sets the Grid Magnetic declination.
Syntax
public CIMDeclination GMAngle {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.1 or higher.
See Also