InkAnalyzerBase.PopulateContextNodeBase Event

Occurs before the ink analyzer performs analysis within the region of a partially populated ContextNodeBase.

Namespace: System.Windows.Ink.AnalysisCore
Assembly: IACore (in iacore.dll)

'Declaration
Public Event PopulateContextNodeBase As PopulateContextNodeBaseEventHandler
'Usage
Dim instance As InkAnalyzerBase
Dim handler As PopulateContextNodeBaseEventHandler

AddHandler instance.PopulateContextNodeBase, handler

/** @event */
public void add_PopulateContextNodeBase (PopulateContextNodeBaseEventHandler value)

/** @event */
public void remove_PopulateContextNodeBase (PopulateContextNodeBaseEventHandler value)

In JScript, you can handle the events defined by a class, but you cannot define your own.
Not applicable.

Use this event when your application maintains its own data structure, which is synchronized with that of the InkAnalyzerBase. When the ink analyzer raises this event, your application should populate the PopulateContextNodeBaseEventArgs.NodeToPopulate. During the analysis phase, the ink analyzer raises this event to get information for areas in which it is analyzing ink.

If the document contains links for the NodeToPopulate, your application should create and add these links. This process requires that both the source and destination nodes, including their ancestors, are fully populated before the event handler for this event exits.

For more information about synchronizing your application data with the InkAnalyzerBase, see Data Proxy with Ink Analysis.

During background analysis, the ink analyzer raises this event after it raises the ReadyToReconcileBase event.

The following example defines a method, AttachDataProxyEventHandlers, that attaches data proxy event handlers to an InkAnalyzerBase, baseInkAnalyzer.

Private Sub AttachDataProxyEventHandlers()
    ' If the document model supports on demand data proxy, then add an
    ' event handler for the PopulateContextNodeBase event. This event is raised
    ' when the InkAnalyzerBase accesses a partially populated ContextNodeBase
    ' created by the document model.
    If Me.baseDocumentModel.SupportsOnDemandDataProxy Then
        AddHandler Me.baseInkAnalyzer.PopulateContextNodeBase, AddressOf Me.PopulateContextNodeBase
    End If

    ' Add the other data proxy related event handlers. These events are raised
    ' by the InkAnalyzer to communicate parsing results to the document model.
    AddHandler Me.baseInkAnalyzer.ContextNodeCreatedBase, _
        AddressOf Me.AddContextNodeBase
    AddHandler Me.baseInkAnalyzer.ContextNodeDeletingBase, _
        AddressOf Me.RemoveContextNodeBase
    AddHandler Me.baseInkAnalyzer.ContextNodeLinkAddingBase, _
        AddressOf Me.AddContextNodeLinkBase
    AddHandler Me.baseInkAnalyzer.ContextNodeLinkDeletingBase, _
        AddressOf Me.RemoveContextNodeLinkBase
    AddHandler Me.baseInkAnalyzer.ContextNodeMovingToPositionBase, _
        AddressOf Me.MoveContextNodeBaseToPosition
    AddHandler Me.baseInkAnalyzer.ContextNodePropertiesUpdatedBase, _
        AddressOf Me.UpdateContextNodeBaseProperties
    AddHandler Me.baseInkAnalyzer.ContextNodeReparentingBase, _
        AddressOf Me.ReparentContextNodeBase
    AddHandler Me.baseInkAnalyzer.InkAnalyzerStateChangingBase, _
        AddressOf Me.InkAnalyzerBase_StateChanging
    AddHandler Me.baseInkAnalyzer.StrokesReparentedBase, _
        AddressOf Me.ReparentStroke
    AddHandler Me.baseInkAnalyzer.IntermediateResultsUpdatedBase, _
        AddressOf Me.BaseResultsAvailable
    AddHandler Me.baseInkAnalyzer.ResultsUpdatedBase, _
        AddressOf Me.BaseResultsAvailable

End Sub 'AttachDataProxyEventHandlers

The following example defines the method, PopulateContextNodeBase, that handles the PopulateContextNodeBase event. The event information is passed to the document model object, baseDocumentModel.

This example does not provide the definition of the document model or demonstrate how it processes the information passed to it.

''' <summary>
''' Handles the InkAnalyzerBase.PopulateContextNodeBase event.
''' </summary>
''' <param name="sender">The source of the event.</param>
''' <param name="e">The event data.</param>
''' <remarks>
''' This event handler fully populates a ContextNodeBase from the document model.
''' The InkAnalyzerBase calls this event handler when it accesses a partially
''' populated ContextNodeBase created by the document model.
''' </remarks>
Private Sub PopulateContextNodeBase( _
    ByVal sender As Object, _
    ByVal e As System.Windows.Ink.AnalysisCore.PopulateContextNodeBaseEventArgs)

    Me.baseDocumentModel.PopulateNode( _
        e.NodeToPopulate, CType(sender, System.Windows.Ink.AnalysisCore.InkAnalyzerBase))

End Sub 'PopulateContextNodeBase

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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