CustomRecognizerNode.GetTextRangeFromNodes 方法
在已辨識的字串中尋找對應於 ContextNode 物件集合的文字範圍,這些物件都是 CustomRecognizerNode 物件的子代。
命名空間: System.Windows.Ink
組件: IAWinFX (在 IAWinFX.dll 中)
語法
'宣告
Public Sub GetTextRangeFromNodes ( _
subTree As ContextNodeCollection, _
<OutAttribute> ByRef start As Integer, _
<OutAttribute> ByRef length As Integer _
)
'用途
Dim instance As CustomRecognizerNode
Dim subTree As ContextNodeCollection
Dim start As Integer
Dim length As Integer
instance.GetTextRangeFromNodes(subTree, _
start, length)
public void GetTextRangeFromNodes(
ContextNodeCollection subTree,
out int start,
out int length
)
public:
void GetTextRangeFromNodes(
ContextNodeCollection^ subTree,
[OutAttribute] int% start,
[OutAttribute] int% length
)
public void GetTextRangeFromNodes(
ContextNodeCollection subTree,
/** @attribute OutAttribute */ /** @ref */int start,
/** @attribute OutAttribute */ /** @ref */int length
)
public function GetTextRangeFromNodes(
subTree : ContextNodeCollection,
start : int,
length : int
)
參數
- subTree
型別:System.Windows.Ink.ContextNodeCollection
ContextNode 物件集合,這些物件都是 CustomRecognizerNode 的子代。
- start
型別:System.Int32%
文字範圍的起始位置。
- length
型別:System.Int32%
文字範圍的長度。
備註
如果 subTree 參數包含不是 CustomRecognizerNode 之子代的 ContextNode 物件,則會擲回 ArgumentException。
如果 subTree 參數包含不連續的 ContextNode 物件,則會傳回涵蓋所有 ContextNode 物件的最小文字範圍。
範例
下列範例會採用 CustomRecognizerNode (customRecognizer) 並尋找最後一行。接著會尋找對應於該行的文字範圍,將 GetRecognizedString 的值放入 TextBox (名為 selectedResultsTextBox),並且選取對應於最後一行的文字。
Dim lines As ContextNodeCollection = _
theInkAnalyzer.FindNodesOfType(ContextNodeType.Line, customRecognizer)
Dim nLines As Integer = lines.Count
' Create a collection to hold the last line
Dim lastLineCollection As New ContextNodeCollection(theInkAnalyzer)
If nLines > 0 Then
lastLineCollection.Add(lines((nLines - 1)))
End If
' Find corresponding start and length
Dim start, length As Integer
customRecognizer.GetTextRangeFromNodes(lastLineCollection, start, length)
' Select this in the text box
selectedResultsTextBox.Text = customRecognizer.GetRecognizedString()
selectedResultsTextBox.Select(start, length)
ContextNodeCollection lines =
theInkAnalyzer.FindNodesOfType(ContextNodeType.Line, customRecognizer);
int nLines = lines.Count;
// Create a collection to hold the last line
ContextNodeCollection lastLineCollection = new ContextNodeCollection(theInkAnalyzer);
if (nLines > 0)
{
lastLineCollection.Add(lines[nLines - 1]);
}
// Find corresponding start and length
int start, length;
customRecognizer.GetTextRangeFromNodes(lastLineCollection, out start, out length);
// Select this in the text box
selectedResultsTextBox.Text = customRecognizer.GetRecognizedString();
selectedResultsTextBox.Select(start, length);
平台
Windows Vista
.NET Framework 和 .NET Compact Framework 並不支援各種平台的所有版本。如需支援平台版本的相關資訊,請參閱 .NET Framework 系統需求。
版本資訊
.NET Framework
支援版本:3.0