ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Mapping.Controls Namespace / MapControl Class / AddOverlay Method / AddOverlay(CIMGraphic,Double) Method
The graphic to be added to the overlay.
Map reference scale or -1
Version

AddOverlay(CIMGraphic,Double) Method
Add an overlay graphic to the map control.
Syntax

Parameters

graphic
The graphic to be added to the overlay.
referenceScale
Map reference scale or -1

Return Value

An object that when disposed will remove the overlay.
Remarks
When the referenceScale is not equal to -1, the overlay will be created in real world units relative to the provided map reference scale (referenceScale). Otherwise, the overlay will be created in units of points. This is only supported in 2D.
Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3.2 or higher.
See Also