StrokeCollection.HitTest Method (Point, Double)


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Returns a collection of strokes that intersect the specified area.

Namespace:   System.Windows.Ink
Assembly:  PresentationCore (in PresentationCore.dll)

public StrokeCollection HitTest(
	Point point,
	double diameter


Type: System.Windows.Point

The Point to hit test.

Type: System.Double

The size of the area around the Point to hit test.

Return Value

Type: System.Windows.Ink.StrokeCollection

A collection of Stroke objects that intersect the specified point.

The following example demonstrates how to get the strokes that intersect the specified Point. This example assumes that there is an InkPresenter called presenter.

// Change the color of all the strokes at the specified position.
public void SelectStrokes(Point position)
    StrokeCollection selected = presenter.Strokes.HitTest(position, 5);

    foreach (Stroke s in selected)
        s.DrawingAttributes.Color = Colors.Purple;


.NET Framework
Available since 3.0
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