This document is archived and information here might be outdated.  Recommended version.


IMapControl3.TrackCircle Method (ArcObjects .NET 10.5 SDK)
ArcObjects Help for .NET developers > ArcObjects namespaces > Controls > ESRI ArcGIS Controls > Interfaces > IM > IMapControl3 Interface > IMapControl3.TrackCircle Method (ArcObjects .NET 10.5 SDK)
ArcObjects Library Reference (Controls)  

IMapControl3.TrackCircle Method

Rubber-bands a circle on the MapControl.

[Visual Basic .NET]
Public Function TrackCircle ( _
) As IGeometry

[C#]
public IGeometry TrackCircle (
);

[C++]
HRESULT TrackCircle(
  IGeometry** circle
);

[C++]

Parameters
circle [out, retval]

  circle is a parameter of type IGeometry

Product Availability

Available with ArcGIS Engine.

Description

TrackCircle returns a geometry object that implements IPolygon.

Remarks

Use the TrackCircle method within the IMapControlEvents2::OnMouseDown event to rubberband a user defined Circle. The IMapControlEvents2::OnMouseMove event will be triggered during the track, but no IMapControlEvents2::OnMouseUp event will occur. The ESC key on the keyboard can be used during the track to cancel the TrackCircle.

See Also

IMapControl3 Interface | IMapControl2.TrackLine Method | IMapControl3.TrackLine Method | IMapControl4.TrackLine Method | IMapControl4.TrackPolygon Method | IMapControl2.TrackPolygon Method | IMapControl3.TrackPolygon Method | IMapControl3.TrackRectangle Method | IMapControl4.TrackRectangle Method | IMapControl2.TrackRectangle Method