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GeometryHitTestParameters Constructor

Initializes a new instance of the GeometryHitTestParameters class, using the specified Geometry.

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

public GeometryHitTestParameters(
	Geometry geometry


Type: System.Windows.Media.Geometry

The Geometry value to use for the hit test geometry.

The following example shows how to set up a hit test by using GeometryHitTestParameters for the HitTest method. A Point value is used to create a Geometry object to expand the range of the hit test over a wider display area.

// Retrieve the coordinate of the mouse position.
Point pt = e.GetPosition((UIElement)sender);

// Expand the hit test area by creating a geometry centered on the hit test point.
EllipseGeometry expandedHitTestArea = new EllipseGeometry(pt, 10.0, 10.0);

// Set up a callback to receive the hit test result enumeration.
VisualTreeHelper.HitTest(myControl, null,
    new HitTestResultCallback(MyHitTestResultCallback),
    new GeometryHitTestParameters(expandedHitTestArea));

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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