Get Polyline From Mouse Clicks Snippet

///<summary>
///Create a polyline geometry object using the RubberBand.TrackNew method when a user click the mouse on the map control. 
///</summary>
///<param name="activeView">An ESRI.ArcGIS.Carto.IActiveView interface that will user will interace with to draw a polyline.</param>
///<returns>An ESRI.ArcGIS.Geometry.IPolyline interface that is the polyline the user drew</returns>
///<remarks>Double click the left mouse button to end tracking the polyline.</remarks>
public ESRI.ArcGIS.Geometry.IPolyline GetPolylineFromMouseClicks(ESRI.ArcGIS.Carto.IActiveView activeView)
{

  ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = activeView.ScreenDisplay;

  ESRI.ArcGIS.Display.IRubberBand rubberBand = new ESRI.ArcGIS.Display.RubberLineClass();
  ESRI.ArcGIS.Geometry.IGeometry geometry = rubberBand.TrackNew(screenDisplay, null);

  ESRI.ArcGIS.Geometry.IPolyline polyline = (ESRI.ArcGIS.Geometry.IPolyline)geometry;

  return polyline;

}

'''<summary>
'''Create a polyline geometry object using the RubberBand.TrackNew method when a user click the mouse on the map control. 
'''</summary>
'''<param name="activeView">An ESRI.ArcGIS.Carto.IActiveView interface that will user will interace with to draw a polyline.</param>
'''<returns>An ESRI.ArcGIS.Geometry.IPolyline interface that is the polyline the user drew</returns>
'''<remarks>Double click the left mouse button to end tracking the polyline.</remarks>
Public Function GetPolylineFromMouseClicks(ByVal activeView As ESRI.ArcGIS.Carto.IActiveView) As ESRI.ArcGIS.Geometry.IPolyline

  Dim screenDisplay As ESRI.ArcGIS.Display.IScreenDisplay = activeView.ScreenDisplay

  Dim rubberBand As ESRI.ArcGIS.Display.IRubberBand = New ESRI.ArcGIS.Display.RubberLineClass
  Dim geometry As ESRI.ArcGIS.Geometry.IGeometry = rubberBand.TrackNew(screenDisplay, Nothing)

  Dim polyline As ESRI.ArcGIS.Geometry.IPolyline = CType(geometry, ESRI.ArcGIS.Geometry.IPolyline)

  Return polyline

End Function