ArcGIS Pro 2.6 API Reference Guide
CanResizeHorizontally Property (IMapViewOverlayControl)

ArcGIS.Desktop.Mapping Namespace > IMapViewOverlayControl Interface : CanResizeHorizontally Property
Indicates that left and right resize handles should be attached to the control.
Syntax
bool CanResizeHorizontally {get;}
ReadOnly Property CanResizeHorizontally As Boolean
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 7

See Also

Reference

IMapViewOverlayControl Interface
IMapViewOverlayControl Members