InkCanvas.SetEnabledGestures(IEnumerable<ApplicationGesture>) Método

Definición

Espacio de nombres:

System.Windows.Controls

Ensamblado:

PresentationFramework.dll

Establece los gestos de la aplicación que InkCanvas va a reconocer.

public:
 void SetEnabledGestures(System::Collections::Generic::IEnumerable<System::Windows::Ink::ApplicationGesture> ^ applicationGestures);

public void SetEnabledGestures (System.Collections.Generic.IEnumerable<System.Windows.Ink.ApplicationGesture> applicationGestures);

member this.SetEnabledGestures : seq<System.Windows.Ink.ApplicationGesture> -> unit

Public Sub SetEnabledGestures (applicationGestures As IEnumerable(Of ApplicationGesture))

Parámetros

applicationGestures

IEnumerable<ApplicationGesture>

Colección de gestos de la aplicación que InkCanvas va a reconocer.

Excepciones

InvalidOperationException

La propiedad IsGestureRecognizerAvailable es false.

Comentarios

En el ejemplo siguiente se muestra cómo configurar un InkCanvas para reconocer gestos de aplicación.

// Add this code to the contstructor or OnLoaded method.
if (inkCanvas1.IsGestureRecognizerAvailable)
{
    inkCanvas1.EditingMode = InkCanvasEditingMode.InkAndGesture;
    inkCanvas1.Gesture += new InkCanvasGestureEventHandler(inkCanvas1_Gesture);
    inkCanvas1.SetEnabledGestures(new ApplicationGesture[] 
                    {ApplicationGesture.Down, 
                     ApplicationGesture.ArrowDown,
                     ApplicationGesture.Circle});
}

' Add this code to the contstructor or OnLoaded method.
If (inkCanvas1.IsGestureRecognizerAvailable) Then

    inkCanvas1.EditingMode = InkCanvasEditingMode.InkAndGesture

    Dim gestures() As ApplicationGesture = _
                        {ApplicationGesture.Down, _
                         ApplicationGesture.ArrowDown, _
                         ApplicationGesture.Circle}

    inkCanvas1.SetEnabledGestures(gestures)
End If

void inkCanvas1_Gesture(object sender, InkCanvasGestureEventArgs e)
{
    ReadOnlyCollection<GestureRecognitionResult> gestureResults = 
        e.GetGestureRecognitionResults();

    // Check the first recognition result for a gesture.
    if (gestureResults[0].RecognitionConfidence == 
        RecognitionConfidence.Strong)
    {
        switch (gestureResults[0].ApplicationGesture)
        {
            case ApplicationGesture.Down:
                // Do something.
                break;
            case ApplicationGesture.ArrowDown:
                // Do something.
                break;
            case ApplicationGesture.Circle:
                // Do something.
                break;
        }
    }
}

Sub inkCanvas1_Gesture(ByVal sender As Object, _
    ByVal e As InkCanvasGestureEventArgs) Handles inkCanvas1.Gesture

    Dim gestureResults As ReadOnlyCollection(Of GestureRecognitionResult)
    gestureResults = e.GetGestureRecognitionResults()

    ' Check the first recognition result for a gesture.
    If gestureResults(0).RecognitionConfidence = _
       RecognitionConfidence.Strong Then

        Select Case gestureResults(0).ApplicationGesture
            Case ApplicationGesture.Down
                ' Do something.
            Case ApplicationGesture.ArrowDown
                ' Do something.
            Case ApplicationGesture.Circle
                ' Do something.
        End Select

    End If

End Sub