GeometryHitTestResult.IntersectionDetail Egenskap

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

Egenskapsvärde

Värdet IntersectionDetail för träfftestet.

Exempel

I följande exempel visas hur du IntersectionDetail använder egenskapen 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

Kommentarer

Egenskapen IntersectionDetail beskriver skärningspunkten mellan ett Geometry och det visuella målobjektet.

Följande bild visar relationen mellan träfftestgeometrin (den blå cirkeln) och målobjektet (den röda fyrkanten).

Skärningspunkten mellan en träfftestgeometri och ett målobjekt