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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, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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