GeometryHitTestResult.IntersectionDetail Свойство

Определение

Пространство имен:

System.Windows.Media

Сборка:

PresentationCore.dll

Возвращает значение IntersectionDetail проверки нажатия.

public:
 property System::Windows::Media::IntersectionDetail IntersectionDetail { System::Windows::Media::IntersectionDetail get(); };

public System.Windows.Media.IntersectionDetail IntersectionDetail { get; }

member this.IntersectionDetail : System.Windows.Media.IntersectionDetail

Public ReadOnly Property IntersectionDetail As IntersectionDetail

Значение свойства

IntersectionDetail

Значение IntersectionDetail проверки нажатия.

Примеры

В следующем примере показано, как использовать IntersectionDetail свойство GeometryHitTestResult.

// Return the result of the hit test to the callback.
public HitTestResultBehavior MyHitTestResultCallback(HitTestResult result)
{
    // Retrieve the results of the hit test.
    IntersectionDetail intersectionDetail = ((GeometryHitTestResult)result).IntersectionDetail;

    switch (intersectionDetail)
    {
        case IntersectionDetail.FullyContains:

            // Add the hit test result to the list that will be processed after the enumeration.
            hitResultsList.Add(result.VisualHit);

            return HitTestResultBehavior.Continue;

        case IntersectionDetail.Intersects:

            // Set the behavior to return visuals at all z-order levels.
            return HitTestResultBehavior.Continue;

        case IntersectionDetail.FullyInside:

            // Set the behavior to return visuals at all z-order levels.
            return HitTestResultBehavior.Continue;

        default:
            return HitTestResultBehavior.Stop;
    }
}

' Return the result of the hit test to the callback.
Public Function MyHitTestResultCallback(ByVal result As HitTestResult) As HitTestResultBehavior
    ' Retrieve the results of the hit test.
    Dim intersectionDetail As IntersectionDetail = (CType(result, GeometryHitTestResult)).IntersectionDetail

    Select Case intersectionDetail
        Case IntersectionDetail.FullyContains

            ' Add the hit test result to the list that will be processed after the enumeration.
            hitResultsList.Add(result.VisualHit)

            Return HitTestResultBehavior.Continue

        Case IntersectionDetail.Intersects

            ' Set the behavior to return visuals at all z-order levels.
            Return HitTestResultBehavior.Continue

        Case IntersectionDetail.FullyInside

            ' Set the behavior to return visuals at all z-order levels.
            Return HitTestResultBehavior.Continue

        Case Else
            Return HitTestResultBehavior.Stop
    End Select
End Function

Комментарии

Свойство IntersectionDetail описывает пересечение между целевым Geometry визуальным объектом.

На следующем рисунке показана связь между геометрией теста попадания (синим кругом) и целевым объектом (красный квадрат).

Пересечение геометрии теста попадания и целевого объекта