ArcGIS Pro 2.6 API Reference Guide
InitialYRatio Property (IMapViewOverlayControl)

ArcGIS.Desktop.Mapping Namespace > IMapViewOverlayControl Interface : InitialYRatio Property
The initial vertical position of the control as a percent. Can be from 0 (top edge), to 1 (bottom edge).
Syntax
double InitialYRatio {get;}
ReadOnly Property InitialYRatio As Double
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

IMapViewOverlayControl Interface
IMapViewOverlayControl Members