本文整理匯總了C#中System.Windows.Media.HitTestFilterCallback代理的典型用法代碼示例。如果您正苦於以下問題：C# HitTestFilterCallback代理的具體用法？C# HitTestFilterCallback怎麽用？C# HitTestFilterCallback使用的例子？那麽, 這裏精選的代理代碼示例或許可以為您提供幫助。
HitTestFilterCallback代理屬於System.Windows.Media命名空間，在下文中一共展示了HitTestFilterCallback代理的2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C#代碼示例。
示例1: OnMouseWheel
// Respond to the mouse wheel event by setting up a hit test filter and results enumeration.
private void OnMouseWheel(object sender, MouseWheelEventArgs e)
{
// Retrieve the coordinate of the mouse position.
Point pt = e.GetPosition((UIElement)sender);
// 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(myCanvas,
new HitTestFilterCallback(MyHitTestFilter),
new HitTestResultCallback(MyHitTestResult),
new PointHitTestParameters(pt));
// Perform actions on the hit test results list.
if (hitResultsList.Count > 0)
{
ProcessHitTestResultsList();
}
}示例2: MyHitTestFilter
// Filter the hit test values for each object in the enumeration.
public HitTestFilterBehavior MyHitTestFilter(DependencyObject o)
{
// Test for the object value you want to filter.
if (o.GetType() == typeof(Label))
{
// Visual object and descendants are NOT part of hit test results enumeration.
return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
}
else
{
// Visual object is part of hit test results enumeration.
return HitTestFilterBehavior.Continue;
}
}