InkAnalyzerBase.InkAnalyzerStateChangingBase 事件
在墨迹分析器协调分析结果之前发生,以便应用程序可以将数据与墨迹分析器同步。
命名空间: System.Windows.Ink.AnalysisCore
程序集: IACore(在 IACore.dll 中)
语法
声明
Public Event InkAnalyzerStateChangingBase As InkAnalyzerStateChangingBaseEventHandler
用法
Dim instance As InkAnalyzerBase
Dim handler As InkAnalyzerStateChangingBaseEventHandler
AddHandler instance.InkAnalyzerStateChangingBase, handler
public event InkAnalyzerStateChangingBaseEventHandler InkAnalyzerStateChangingBase
public:
event InkAnalyzerStateChangingBaseEventHandler^ InkAnalyzerStateChangingBase {
void add (InkAnalyzerStateChangingBaseEventHandler^ value);
void remove (InkAnalyzerStateChangingBaseEventHandler^ value);
}
/** @event */
public void add_InkAnalyzerStateChangingBase (InkAnalyzerStateChangingBaseEventHandler value)
/** @event */
public void remove_InkAnalyzerStateChangingBase (InkAnalyzerStateChangingBaseEventHandler value)
JScript 不支持事件。
备注
如果您的应用程序维护其自己的数据结构(该数据结构与 InkAnalyzerBase 的数据结构同步),请使用此事件。当墨迹分析器引发此事件时,应用程序应填充 InkAnalyzerBase 对象的 RootNode 的 SubNodes 属性。
墨迹分析器在引发 ReadyToReconcileBase 事件之后引发此事件。它仅在执行后台分析时引发此事件。
请在墨迹分析器引发 InkAnalyzerStateChangingBase 事件时锁定您的数据结构。在此分析阶段中更改数据结构可能导致墨迹分析错误和同步错误。请在墨迹分析器引发 IntermediateResultsUpdatedBase 或 ResultsUpdatedBase 事件时取消锁定数据结构。
有关将应用程序数据与 InkAnalyzerBase 同步的更多信息,请参见Data Proxy with Ink Analysis。
示例
下面的示例定义方法 AttachDataProxyEventHandlers,该方法将数据代理事件处理程序附加到 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
private void 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 (this.baseDocumentModel.SupportsOnDemandDataProxy)
{
this.baseInkAnalyzer.PopulateContextNodeBase +=
new System.Windows.Ink.AnalysisCore.PopulateContextNodeBaseEventHandler(
this.PopulateContextNodeBase);
}
// Add the other data proxy related event handlers. These events are raised
// by the InkAnalyzer to communicate parsing results to the document model.
this.baseInkAnalyzer.ContextNodeCreatedBase +=
new System.Windows.Ink.AnalysisCore.ContextNodeCreatedBaseEventHandler(
this.AddContextNodeBase);
this.baseInkAnalyzer.ContextNodeDeletingBase +=
new System.Windows.Ink.AnalysisCore.ContextNodeDeletingBaseEventHandler(
this.RemoveContextNodeBase);
this.baseInkAnalyzer.ContextNodeLinkAddingBase +=
new System.Windows.Ink.AnalysisCore.ContextNodeLinkAddingBaseEventHandler(
this.AddContextNodeLinkBase);
this.baseInkAnalyzer.ContextNodeLinkDeletingBase +=
new System.Windows.Ink.AnalysisCore.ContextNodeLinkDeletingBaseEventHandler(
this.RemoveContextNodeLinkBase);
this.baseInkAnalyzer.ContextNodeMovingToPositionBase +=
new System.Windows.Ink.AnalysisCore.ContextNodeMovingToPositionBaseEventHandler(
this.MoveContextNodeBaseToPosition);
this.baseInkAnalyzer.ContextNodePropertiesUpdatedBase +=
new System.Windows.Ink.AnalysisCore.ContextNodePropertiesUpdatedBaseEventHandler(
this.UpdateContextNodeBaseProperties);
this.baseInkAnalyzer.ContextNodeReparentingBase +=
new System.Windows.Ink.AnalysisCore.ContextNodeReparentingBaseEventHandler(
this.ReparentContextNodeBase);
this.baseInkAnalyzer.InkAnalyzerStateChangingBase +=
new System.Windows.Ink.AnalysisCore.InkAnalyzerStateChangingBaseEventHandler(
this.InkAnalyzerBase_StateChanging);
this.baseInkAnalyzer.StrokesReparentedBase +=
new System.Windows.Ink.AnalysisCore.StrokesReparentedBaseEventHandler(
this.ReparentStroke);
this.baseInkAnalyzer.IntermediateResultsUpdatedBase +=
new System.Windows.Ink.AnalysisCore.ResultsUpdatedBaseEventHandler(
this.BaseResultsAvailable);
this.baseInkAnalyzer.ResultsUpdatedBase +=
new System.Windows.Ink.AnalysisCore.ResultsUpdatedBaseEventHandler(
this.BaseResultsAvailable);
}
下面的示例定义 InkAnalyzerBase_StateChanging 方法,用以处理 InkAnalyzerStateChangingBase 事件。事件信息将传递给文档模型对象 baseDocumentModel。
此示例不提供文档模型的定义,也不演示文档模型如何处理传入的信息。
''' <summary>
''' Handles the InkAnalyzerBase.InkAnalyzerStateChangingBase event.
''' </summary>
''' <param name="sender">The source of the event.</param>
''' <param name="e">The event data.</param>
Private Sub InkAnalyzerBase_StateChanging( _
ByVal sender As Object, ByVal e As System.EventArgs)
Me.baseDocumentModel.BeginReconcilePhase()
End Sub 'InkAnalyzerBase_StateChanging
/// <summary>
/// Handles the InkAnalyzerBase.InkAnalyzerStateChangingBase event.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The event data.</param>
private void InkAnalyzerBase_StateChanging(
object sender, System.EventArgs e)
{
this.baseDocumentModel.BeginReconcilePhase();
}
平台
Windows Vista, Windows XP SP2, Windows Server 2003
.NET Framework 和 .NET Compact Framework 并不是对每个平台的所有版本都提供支持。有关支持的版本的列表,请参见.NET Framework 系统要求。
版本信息
.NET Framework
受以下版本支持:3.0
另请参见
参考
System.Windows.Ink.AnalysisCore 命名空间
InkAnalyzerBase.BackgroundAnalyze
InkAnalyzerBase.IntermediateResultsUpdatedBase
InkAnalyzerBase.PopulateContextNodeBase