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IMapControlDefault.TrackCircle Method (ArcObjects .NET 10.8 SDK)
ArcObjects Help for .NET developers > ArcObjects Help for .NET developers > ArcObjects namespaces > Controls > ESRI ArcGIS Controls > Interfaces > IM > IMapControlDefault Interface > IMapControlDefault.TrackCircle Method
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IMapControlDefault.TrackCircle Method

Rubber-bands a circle on the MapControl.

[Visual Basic .NET]
Public Function TrackCircle ( _
) As IGeometry
[C#]
public IGeometry TrackCircle (
);
[C++]
HRESULT TrackCircle(
void
);

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

IMapControlDefault Interface