TextWordNode 类

项目
11/04/2008

表示应用程序中可以存在非墨迹文本单词的二维区域的 ContextNode。

命名空间： System.Windows.Ink
程序集： IAWinFX（在 IAWinFX.dll 中）

语法

声明
Public NotInheritable Class TextWordNode _
    Inherits ContextNode
用法
Dim instance As TextWordNode

public sealed class TextWordNode : ContextNode

public ref class TextWordNode sealed : public ContextNode

public final class TextWordNode extends ContextNode

public final class TextWordNode extends ContextNode

备注

InkAnalyzer 不生成 TextWordNode 对象。应用程序使用 CreateSubNode(ContextNodeType) 方法将 TextWordNode 对象添加到上下文节点树。如果保存分析器的状态，则这些节点也可保存。

未来的识别器可能使用由 TextWordNode 对象定义的区域来确定是否有任何墨迹对非墨迹单词进行批注。

TextWordNode 不能有任何子节点。

示例

下面的示例为名为 theTextBox 的 TextBox 控件将一个 TextWordNode 对象添加到名为 theInkAnalyzer 的 InkAnalyzer。该示例将 TextWordNode 对象的 Data 属性设置为 TextBox 的 Text 属性。

' Add nodes to hold the TextWordNode
Dim writingRegion As WritingRegionNode = _
    CType(theInkAnalyzer.RootNode.CreateSubNode(ContextNodeType.WritingRegion), _
    WritingRegionNode)

Dim paragraph As ParagraphNode = _
    CType(writingRegion.CreateSubNode(ContextNodeType.Paragraph), _
    ParagraphNode)

Dim line As LineNode = _
    CType(paragraph.CreateSubNode(ContextNodeType.Line), LineNode)

' Create node for the word
Dim textWord As TextWordNode = _
    CType(line.CreateSubNode(ContextNodeType.TextWord), TextWordNode)

' Set location
Dim textTop As Double = InkCanvas.GetTop(theTextBox)
Dim textLeft As Double = InkCanvas.GetLeft(theTextBox)

Dim rectLocation As New Rect(textLeft, textTop, theTextBox.Width, theTextBox.Height)
textWord.SetLocation(New AnalysisRegion(rectLocation))

' Set the data property to be the text in the textbox.
textWord.Data = theTextBox.Text

// Add nodes to hold the TextWordNode
WritingRegionNode writingRegion = (WritingRegionNode)
    theInkAnalyzer.RootNode.CreateSubNode(ContextNodeType.WritingRegion);
ParagraphNode paragraph = (ParagraphNode)
    writingRegion.CreateSubNode(ContextNodeType.Paragraph);
LineNode line = (LineNode)
    paragraph.CreateSubNode(ContextNodeType.Line);

// Create node for the word
TextWordNode textWord = (TextWordNode)
    line.CreateSubNode(ContextNodeType.TextWord);


// Set location
double textTop = InkCanvas.GetTop(theTextBox);
double textLeft = InkCanvas.GetLeft(theTextBox);

Rect rectLocation = new Rect(textLeft, textTop, theTextBox.Width, theTextBox.Height);
textWord.SetLocation(new AnalysisRegion(rectLocation));

// Set the data property to be the text in the textbox.
textWord.Data = theTextBox.Text;