InkAnalyzerBase.GetTextRangeFromNodes 方法
查找已识别字符串中对应于上下文节点集合的文本范围。
命名空间: System.Windows.Ink.AnalysisCore
程序集: IACore(在 IACore.dll 中)
语法
声明
Public Sub GetTextRangeFromNodes ( _
nodesToSearch As ContextNodeBaseCollection, _
<OutAttribute> ByRef start As Integer, _
<OutAttribute> ByRef length As Integer _
)
用法
Dim instance As InkAnalyzerBase
Dim nodesToSearch As ContextNodeBaseCollection
Dim start As Integer
Dim length As Integer
instance.GetTextRangeFromNodes(nodesToSearch, _
start, length)
public void GetTextRangeFromNodes(
ContextNodeBaseCollection nodesToSearch,
out int start,
out int length
)
public:
void GetTextRangeFromNodes(
ContextNodeBaseCollection^ nodesToSearch,
[OutAttribute] int% start,
[OutAttribute] int% length
)
public void GetTextRangeFromNodes(
ContextNodeBaseCollection nodesToSearch,
/** @attribute OutAttribute */ /** @ref */int start,
/** @attribute OutAttribute */ /** @ref */int length
)
public function GetTextRangeFromNodes(
nodesToSearch : ContextNodeBaseCollection,
start : int,
length : int
)
参数
- nodesToSearch
类型:System.Windows.Ink.AnalysisCore.ContextNodeBaseCollection
要查找其文本范围的上下文节点的集合。
- start
类型:System.Int32%
此方法返回时,start 参数包含指示文本范围起点的 32 位有符号整数。该参数未经初始化即被传递。
- length
类型:System.Int32%
此方法返回时,length 参数包含指示文本范围长度的 32 位有符号整数。该参数未经初始化即被传递。
备注
如果 nodesToSearch 包含不连续的 ContextNodeBase 对象,则此方法返回涵盖所有上下文节点的最小文本范围。
如果 nodesToSearch 包含不与 InkAnalyzerBase 关联的上下文节点,则此方法引发 System.ArgumentException。
示例
下面的示例检索 InkAnalyzerBase (theInkAnalyzerBase) 的第一个行节点的文本范围。
' Get all line nodes.
Dim theLineNodes As System.Windows.Ink.AnalysisCore.ContextNodeBaseCollection = _
theInkAnalyzerBase.FindNodesOfType( _
System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line)
' Remove all but the first line node.
If 0 < theLineNodes.Count Then
Dim firstLineNode As System.Windows.Ink.AnalysisCore.ContextNodeBase = theLineNodes(0)
theLineNodes.Clear()
theLineNodes.Add(firstLineNode)
End If
' Get the text range for the first line node.
Dim selectionStart As Integer = 0
Dim selectionLength As Integer = 0
If 0 < theLineNodes.Count Then
theInkAnalyzerBase.GetTextRangeFromNodes( _
theLineNodes, selectionStart, selectionLength)
End If
// Get all line nodes.
System.Windows.Ink.AnalysisCore.ContextNodeBaseCollection theLineNodes =
theInkAnalyzerBase.FindNodesOfType(
System.Windows.Ink.AnalysisCore.ContextNodeTypeBase.Line);
// Remove all but the first line node.
if (0 < theLineNodes.Count)
{
System.Windows.Ink.AnalysisCore.ContextNodeBase firstLineNode = theLineNodes[0];
theLineNodes.Clear();
theLineNodes.Add(firstLineNode);
}
// Get the text range for the first line node.
int selectionStart = 0;
int selectionLength = 0;
if (0 < theLineNodes.Count)
{
theInkAnalyzerBase.GetTextRangeFromNodes(
theLineNodes, out selectionStart, out selectionLength);
}
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