本文整理匯總了VB.NET中System.Windows.Media.GeometryHitTestParameters類的典型用法代碼示例。如果您正苦於以下問題：VB.NET GeometryHitTestParameters類的具體用法？VB.NET GeometryHitTestParameters怎麽用？VB.NET GeometryHitTestParameters使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了GeometryHitTestParameters類的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: OnMouseDown
' Respond to the mouse button down event by setting up a hit test results callback.
Private Overloads Sub OnMouseDown(ByVal sender As Object, ByVal e As MouseButtonEventArgs)
' Retrieve the coordinate of the mouse position.
Dim pt As Point = e.GetPosition(CType(sender, UIElement))
' Expand the hit test area by creating a geometry centered on the hit test point.
Dim expandedHitTestArea As New EllipseGeometry(pt, 10.0, 10.0)
' Clear the contents of the list used for hit test results.
hitResultsList.Clear()
' Set up a callback to receive the hit test result enumeration.
VisualTreeHelper.HitTest(myControl, Nothing, New HitTestResultCallback(AddressOf MyHitTestResultCallback), New GeometryHitTestParameters(expandedHitTestArea))
' Perform actions on the hit test results list.
If hitResultsList.Count > 0 Then
ProcessHitTestResultsList()
End If
End Sub