InkAnalyzer.ContextNodeCreated (Evento)

Artículo
11/26/2008

Actualización: noviembre 2007

Se produce después de que el objeto InkAnalyzer crea un objeto ContextNode.

Espacio de nombres: Microsoft.Ink
Ensamblado: Microsoft.Ink.Analysis (en Microsoft.Ink.Analysis.dll)

Sintaxis

'Declaración
Public Event ContextNodeCreated As ContextNodeCreatedEventHandler
'Uso
Dim instance As InkAnalyzer
Dim handler As ContextNodeCreatedEventHandler

AddHandler instance.ContextNodeCreated, handler

public event ContextNodeCreatedEventHandler ContextNodeCreated

public:
 event ContextNodeCreatedEventHandler^ ContextNodeCreated {
    void add (ContextNodeCreatedEventHandler^ value);
    void remove (ContextNodeCreatedEventHandler^ value);
}

/** @event */
public void add_ContextNodeCreated (ContextNodeCreatedEventHandler value)
/** @event */
public void remove_ContextNodeCreated (ContextNodeCreatedEventHandler value)

JScript no admite eventos.

Comentarios

Utilice este evento cuando la aplicación mantenga su propia estructura de datos, que está sincronizada con la del objeto InkAnalyzer. Este evento se produce durante la fase de conciliación del análisis de entrada manuscrita o en respuesta a un método InkAnalyzer que crea un objeto ContextNode.

Cuando el objeto InkAnalyzer crea un objeto ContextNode, el nuevo objeto ContextNode no contiene ningún trazo, ni vínculos a otros objetos ContextNode y puede que no tenga establecidas todas sus propiedades. Asimismo, el nuevo objeto ContextNode se agrega al final de la colección SubNodes de su elemento primario. Después de este evento, el objeto InkAnalyzer puede provocar los eventos siguientes.

El evento StrokesReparented al mover un trazo de un objeto ContextNode a otro.
El evento ContextNodeLinkAdding al agregar un objeto ContextLink a un objeto ContextNode.
El evento ContextNodeMovingToPosition al cambiar el orden de los objetos ContextNode incluidos en la colección SubNodes de su nodo primario.
El evento ContextNodePropertiesUpdated después de resolver el estado del objeto ContextNode para esta fase de análisis.

Para obtener más información sobre la sincronización de los datos de la aplicación con el objeto InkAnalyzer, vea Data Proxy with Ink Analysis.

Ejemplos

En este ejemplo se define un método, AttachDataProxyEventHandlers, que asocia los controladores de eventos del proxy de datos a un objeto InkAnalyzer, theInkAnalyzer.

Private Sub AttachDataProxyEventHandlers() 
    ' If the document model supports on demand data proxy, then add an
    ' event handler for the PopulateContextNode event. This event is raised
    ' when the InkAnalyzer accesses a partially populated ContextNode created
    ' by the document model.
    If Me.theDocumentModel.SupportsOnDemandDataProxy Then
        AddHandler Me.theInkAnalyzer.PopulateContextNode, AddressOf Me.PopulateContextNode
    End If

    ' Add the other data proxy related event handlers. These events are raised
    ' by the InkAnalyzer to communicate ink analysis results to the document model.
    AddHandler Me.theInkAnalyzer.ContextNodeCreated, AddressOf Me.AddContextNode
    AddHandler Me.theInkAnalyzer.ContextNodeDeleting, AddressOf Me.RemoveContextNode
    AddHandler Me.theInkAnalyzer.ContextNodeLinkAdding, AddressOf Me.AddContextNodeLink
    AddHandler Me.theInkAnalyzer.ContextNodeLinkDeleting, AddressOf Me.RemoveContextNodeLink
    AddHandler Me.theInkAnalyzer.ContextNodeMovingToPosition, AddressOf Me.MoveContextNodeToPosition
    AddHandler Me.theInkAnalyzer.ContextNodePropertiesUpdated, AddressOf Me.UpdateContextNodeProperties
    AddHandler Me.theInkAnalyzer.ContextNodeReparenting, AddressOf Me.ReparentContextNode
    AddHandler Me.theInkAnalyzer.InkAnalyzerStateChanging, AddressOf Me.InkAnalyzer_StateChanging
    AddHandler Me.theInkAnalyzer.StrokesReparented, AddressOf Me.ReparentStroke
    AddHandler Me.theInkAnalyzer.IntermediateResultsUpdated, AddressOf Me.ResultsAvailable
    AddHandler Me.theInkAnalyzer.ResultsUpdated, AddressOf Me.ResultsAvailable

End Sub 'AttachDataProxyEventHandlers

        private void AttachDataProxyEventHandlers()
        {
            // If the document model supports on demand data proxy, then add an
            // event handler for the PopulateContextNode event. This event is raised
            // when the InkAnalyzer accesses a partially populated ContextNode created
            // by the document model.
            if (this.theDocumentModel.SupportsOnDemandDataProxy)
            {
                this.theInkAnalyzer.PopulateContextNode +=
                    new Microsoft.Ink.PopulateContextNodeEventHandler(
                        this.PopulateContextNode);
            }

            // Add the other data proxy related event handlers. These events are raised
            // by the InkAnalyzer to communicate ink analysis results to the document model.
            this.theInkAnalyzer.ContextNodeCreated +=
                new Microsoft.Ink.ContextNodeCreatedEventHandler(
                    this.AddContextNode);
            this.theInkAnalyzer.ContextNodeDeleting +=
                new Microsoft.Ink.ContextNodeDeletingEventHandler(
                    this.RemoveContextNode);
            this.theInkAnalyzer.ContextNodeLinkAdding +=
                new Microsoft.Ink.ContextNodeLinkAddingEventHandler(
                    this.AddContextNodeLink);
            this.theInkAnalyzer.ContextNodeLinkDeleting +=
                new Microsoft.Ink.ContextNodeLinkDeletingEventHandler(
                    this.RemoveContextNodeLink);
            this.theInkAnalyzer.ContextNodeMovingToPosition +=
                new Microsoft.Ink.ContextNodeMovingToPositionEventHandler(
                    this.MoveContextNodeToPosition);
            this.theInkAnalyzer.ContextNodePropertiesUpdated +=
                new Microsoft.Ink.ContextNodePropertiesUpdatedEventHandler(
                    this.UpdateContextNodeProperties);
            this.theInkAnalyzer.ContextNodeReparenting +=
                new Microsoft.Ink.ContextNodeReparentingEventHandler(
                    this.ReparentContextNode);
            this.theInkAnalyzer.InkAnalyzerStateChanging +=
                new Microsoft.Ink.InkAnalyzerStateChangingEventHandler(
                    this.InkAnalyzer_StateChanging);
            this.theInkAnalyzer.StrokesReparented +=
                new Microsoft.Ink.StrokesReparentedEventHandler(
                    this.ReparentStrokes);
            this.theInkAnalyzer.IntermediateResultsUpdated +=
                new Microsoft.Ink.ResultsUpdatedEventHandler(
                    this.ResultsAvailable);
            this.theInkAnalyzer.ResultsUpdated +=
                new Microsoft.Ink.ResultsUpdatedEventHandler(
                    this.ResultsAvailable);
        }

En el ejemplo siguiente se define un método, AddContextNode, que controla el evento ContextNodeCreated. La información del evento se pasa al objeto del modelo de documento, theDocumentModel.

En este ejemplo no se proporciona la definición del modelo de documento ni se muestra cómo procesa la información que se le pasa.

'/ <summary>
'/ Handles the InkAnalyzer.ContextNodeCreated event.
'/ </summary>
'/ <param name="sender">The source of the event.</param>
'/ <param name="e">The event data.</param>
'/ <remarks>
'/ Note: when this event is fired, the ContextNode has not been populated
'/ with extended and other properties. Handle the ContextNodePropertiesUpdated
'/ event to populate the corresponding ContextNode in the document model.
'/ </remarks>
Private Sub AddContextNode( _
    ByVal sender As Object, _
    ByVal e As Microsoft.Ink.ContextNodeCreatedEventArgs)

    ' Do not add unclassified ink nodes to the document model.
    If Microsoft.Ink.ContextNodeType.UnclassifiedInk _
        <> e.NodeCreated.Type Then

        Me.theDocumentModel.AddNode(e.NodeCreated)
    End If

End Sub 'AddContextNode

        /// <summary>
        /// Handles the InkAnalyzer.ContextNodeCreated event.
        /// </summary>
        /// <param name="sender">The source of the event.</param>
        /// <param name="e">The event data.</param>
        /// <remarks>
        /// Note: when this event is fired, the ContextNode has not been populated
        /// with extended and other properties. Handle the ContextNodePropertiesUpdated
        /// event to populate the corresponding ContextNode in the document model.
        /// </remarks>
        private void AddContextNode(
            object sender, Microsoft.Ink.ContextNodeCreatedEventArgs e)
        {
            // Do not add unclassified ink nodes to the document model.
            if (Microsoft.Ink.ContextNodeType.UnclassifiedInk
                != e.NodeCreated.Type)
            {
                this.theDocumentModel.AddNode(e.NodeCreated);
            }
        }

Plataformas

Windows Vista

.NET Framework y .NET Compact Framework no admiten todas las versiones de cada plataforma. Para obtener una lista de las versiones compatibles, vea Requisitos de sistema de .NET Framework.