IncrementalStrokeHitTester.StrokeHit Evento

Definición

Espacio de nombres:

System.Windows.Ink

Ensamblado:

PresentationCore.dll

Se produce cuando IncrementalStrokeHitTester intersecta con un Stroke de entrada de lápiz.

public:
 event System::Windows::Ink::StrokeHitEventHandler ^ StrokeHit;

public event System.Windows.Ink.StrokeHitEventHandler StrokeHit;

member this.StrokeHit : System.Windows.Ink.StrokeHitEventHandler 

Public Custom Event StrokeHit As StrokeHitEventHandler 

Public Event StrokeHit As StrokeHitEventHandler 

Tipo de evento

StrokeHitEventHandler

Ejemplos

En el ejemplo siguiente se muestra cómo borrar dinámicamente una parte de un Stroke. Para crear un control que permita a un usuario borrar la entrada de lápiz, consulte Cómo: Borrar entrada de lápiz en un control personalizado.

// When the stylus intersects a stroke, erase that part of
// the stroke.  When the stylus dissects a stoke, the 
// Stroke.Erase method returns a StrokeCollection that contains
// the two new strokes.
void eraseTester_StrokeHit(object sender,
    StrokeHitEventArgs args)
{
    StrokeCollection eraseResult =
        args.GetPointEraseResults();
    StrokeCollection strokesToReplace = new StrokeCollection();
    strokesToReplace.Add(args.HitStroke);
   
    // Replace the old stroke with the new one.
    if (eraseResult.Count > 0)
    {
        presenter.Strokes.Replace(strokesToReplace, eraseResult);
    }
    else
    {
        presenter.Strokes.Remove(strokesToReplace);
    }
}

' When the stylus intersects a stroke, erase that part of
' the stroke.  When the stylus dissects a stoke, the 
' Stroke.Erase method returns a StrokeCollection that contains
' the two new strokes.
Private Sub eraseTester_StrokeHit(ByVal sender As Object, _
        ByVal args As StrokeHitEventArgs)

    Dim eraseResult As StrokeCollection = _
        args.GetPointEraseResults()
    Dim strokesToReplace As New StrokeCollection()
    strokesToReplace.Add(args.HitStroke)

    ' Replace the old stroke with the new one.
    If eraseResult.Count > 0 Then
        presenter.Strokes.Replace(strokesToReplace, eraseResult)
    Else
        presenter.Strokes.Remove(strokesToReplace)
    End If

End Sub