Public Overloads Sub HitTestAsync( _
   ByVal intersectingRect As Rect, _
   ByVal maxHits As Integer, _
   ByVal hitTestBehavior As MessageLayerHitTestBehavior, _
   ByVal resultCallback As Action(Of IList(Of Message)) _
) 

public void HitTestAsync( 
   Rect intersectingRect,
   int maxHits,
   MessageLayerHitTestBehavior hitTestBehavior,
   Action<IList<Message>> resultCallback
)

Remarks

            GeneralTransform generalTransform = MyMap.TransformToVisual(Application.Current.MainWindow);
            System.Windows.Point transformScreenPnt = generalTransform.Transform(e.ScreenPoint);
            System.Windows.Rect transformScreenRect = new Rect(transformScreenPnt, new Size(100, 100));
            

Parameters

intersectingRect

A System.Windows.Rect representing an area on the map in screen coordinates.

maxHits

A System.Int32 representing the maximum number of hits to retrieve. Use this parameter to improve performance.

hitTestBehavior

A MessageLayerHitTestBehavior value determining how hit test calls are filtered to improve performance.

resultCallback

The Action that will be called with the hit test result as a IList of Messages. If no Message was hit, null will be passed to the callback.

Target Platforms: Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family, Windows 7, Windows 8

Reference