DynamicRenderer.GetDispatcher Método

Definición

Espacio de nombres:

System.Windows.Input.StylusPlugIns

Ensamblado:

PresentationCore.dll

Devuelve un objeto Dispatcher para el subproceso de representación.

protected:
 System::Windows::Threading::Dispatcher ^ GetDispatcher();

protected System.Windows.Threading.Dispatcher GetDispatcher ();

member this.GetDispatcher : unit -> System.Windows.Threading.Dispatcher

Protected Function GetDispatcher () As Dispatcher

Devoluciones

Dispatcher

Dispatcher para el subproceso de representación.

Ejemplos

En el ejemplo siguiente se muestra cómo usar el GetDispatcher método para realizar algún trabajo en el subproceso de representación.

delegate void WorkerMethod();

class CustomDynamicRenderer : DynamicRenderer
{
    protected override void OnStylusDown(RawStylusInput rawStylusInput)
    {
        base.OnStylusDown(rawStylusInput);
        rawStylusInput.NotifyWhenProcessed(null);
    }

    protected override void OnStylusDownProcessed(object callbackData, bool targetVerified)
    {
        base.OnStylusDownProcessed(callbackData, targetVerified);

        Dispatcher renderingThreadDispatcher = this.GetDispatcher();
        renderingThreadDispatcher.BeginInvoke(DispatcherPriority.Normal, new WorkerMethod(DoSomething));
    }

    private void DoSomething()
    {
        // Perform work on the rendering thread.
    }
}

Delegate Sub WorkerMethod()

Class CustomDynamicRenderer
    Inherits DynamicRenderer

    Protected Overrides Sub OnStylusDown(ByVal rawStylusInput As RawStylusInput)

        MyBase.OnStylusDown(rawStylusInput)
        rawStylusInput.NotifyWhenProcessed(Nothing)

    End Sub


    Protected Overrides Sub OnStylusDownProcessed(ByVal callbackData As Object, ByVal targetVerified As Boolean)

        MyBase.OnStylusDownProcessed(callbackData, targetVerified)

        Dim renderingThreadDispatcher As Dispatcher = Me.GetDispatcher()
        renderingThreadDispatcher.BeginInvoke(DispatcherPriority.Normal, New WorkerMethod(AddressOf DoSomething))

    End Sub


    Private Sub DoSomething()
        ' Perform work on the rendering thread.
    End Sub

End Class