PointHitTestResult(Visual, Point) Costruttore

Definizione

Spazio dei nomi:

System.Windows.Media

Assembly:

PresentationCore.dll

Inizializza una nuova istanza della classe PointHitTestResult.

public:
 PointHitTestResult(System::Windows::Media::Visual ^ visualHit, System::Windows::Point pointHit);

public PointHitTestResult (System.Windows.Media.Visual visualHit, System.Windows.Point pointHit);

new System.Windows.Media.PointHitTestResult : System.Windows.Media.Visual * System.Windows.Point -> System.Windows.Media.PointHitTestResult

Public Sub New (visualHit As Visual, pointHit As Point)

Parametri

visualHit

Visual

Visual che rappresenta il risultato dell'hit test.

pointHit

Point

Point che rappresenta il risultato dell'hit test.

Esempio

Nell'esempio seguente viene illustrato come eseguire l'override del supporto di hit test predefinito in un oggetto visivo definito dall'utente. In questo caso, viene creato un nuovo PointHitTestResult oggetto e restituito dal metodo sottoposto a override.

// Override default hit test support in visual object.
protected override HitTestResult HitTestCore(PointHitTestParameters hitTestParameters)
{
    Point pt = hitTestParameters.HitPoint;

    // Perform custom actions during the hit test processing,
    // which may include verifying that the point actually
    // falls within the rendered content of the visual.

    // Return hit on bounding rectangle of visual object.
    return new PointHitTestResult(this, pt);
}

' Override default hit test support in visual object.
Protected Overrides Overloads Function HitTestCore(ByVal hitTestParameters As PointHitTestParameters) As HitTestResult
    Dim pt As Point = hitTestParameters.HitPoint

    ' Perform custom actions during the hit test processing,
    ' which may include verifying that the point actually
    ' falls within the rendered content of the visual.

    ' Return hit on bounding rectangle of visual object.
    Return New PointHitTestResult(Me, pt)
End Function