InkAnalyzerBase.UpdateStrokesCacheBase Event

Článek
10/19/2012

Occurs before the ink analyzer accesses stroke data.

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

Syntax

'Declaration
Public Event UpdateStrokesCacheBase As UpdateStrokesCacheBaseEventHandler
'Usage
Dim instance As InkAnalyzerBase 
Dim handler As UpdateStrokesCacheBaseEventHandler 

AddHandler instance.UpdateStrokesCacheBase, handler

public event UpdateStrokesCacheBaseEventHandler UpdateStrokesCacheBase

public:
 event UpdateStrokesCacheBaseEventHandler^ UpdateStrokesCacheBase {
    void add (UpdateStrokesCacheBaseEventHandler^ value);
    void remove (UpdateStrokesCacheBaseEventHandler^ value);
}

JScript does not support events.

Remarks

The ink analyzer raises this event during ink analysis when it accesses one or more strokes for which the packet data has been cleared. To update the stroke packet data, use the UpdateStrokeData or UpdateStrokesData method.

The ink analyzer does not raise this event when accessing a partially populated ink leaf node when the location of the node has not been set by the ink analyzer.

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

Examples

The following example defines a method, theInkAnalyzerBase_UpdateStrokesCacheBase, that handles the UpdateStrokesCacheBase event of an InkAnalyzerBase. This method retrieves stroke data from an Ink object, theInk. If your application is using an Ink object to store stroke data, your application should use the derived InkAnalyzer class.

''' <summary> 
''' Handles the UpdateStrokesCacheBase event of an InkAnalyzerBase. 
''' </summary> 
''' <param name="sender">The source of the event.</param> 
''' <param name="e">The event data.</param> 
''' <remarks> 
''' This method converts stroke data to packet data for example only. 
''' The InkAnalyzerBase is used when your application is handling packet 
''' data. If your application uses stroke data from an Ink object, then 
''' you would use InkAnalyzer. 
''' </remarks> 
Sub theInkAnalyzerBase_UpdateStrokesCacheBase( _
ByVal sender As Object, _
ByVal e As System.Windows.Ink.AnalysisCore.UpdateStrokesCacheBaseEventArgs)
    ' The source is an InkAnalyzerBase. 
    Dim theInkAnalyzerBase As System.Windows.Ink.AnalysisCore.InkAnalyzerBase = _
        DirectCast(sender, System.Windows.Ink.AnalysisCore.InkAnalyzerBase)

    ' Add the stroke data to the ink analyzer. 
    Dim theStroke As Microsoft.Ink.Stroke
    For Each theStroke In Me.theInk.CreateStrokes(e.GetStrokeIds())
        theInkAnalyzerBase.UpdateStrokeData( _
            theStroke.Id, _
            theStroke.GetPacketData(), _
            theStroke.PacketDescription)
    Next theStroke

End Sub 'theInkAnalyzerBase_UpdateStrokesCacheBase

/// <summary> 
/// Handles the UpdateStrokesCacheBase event of an InkAnalyzerBase. 
/// </summary> 
/// <param name="sender">The source of the event.</param>
/// <param name="e">The event data.</param>
/// <remarks> 
/// This method converts stroke data to packet data for example only. 
/// The InkAnalyzerBase is used when your application is handling packet 
/// data. If your application uses stroke data from an Ink object, then 
/// you would use InkAnalyzer. 
/// </remarks> 
void theInkAnalyzerBase_UpdateStrokesCacheBase(
    object sender, System.Windows.Ink.AnalysisCore.UpdateStrokesCacheBaseEventArgs e)
{
    // The source is an InkAnalyzerBase.
    System.Windows.Ink.AnalysisCore.InkAnalyzerBase theInkAnalyzerBase =
        sender as System.Windows.Ink.AnalysisCore.InkAnalyzerBase;

    // Add the stroke data to the ink analyzer. 
    foreach (Microsoft.Ink.Stroke theStroke
        in this.theInk.CreateStrokes(e.GetStrokeIds()))
    {
        theInkAnalyzerBase.UpdateStrokeData(
            theStroke.Id, theStroke.GetPacketData(),
            theStroke.PacketDescription);
    }
}

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.0

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