ContextNodeType-Klasse
Definiert Werte, die den Typ des ContextNode-Objekts angeben.
Namespace: Microsoft.Ink
Assembly: Microsoft.Ink.Analysis (in Microsoft.Ink.Analysis.dll)
Syntax
'Declaration
Public NotInheritable Class ContextNodeType
'Usage
Dim instance As ContextNodeType
public sealed class ContextNodeType
public ref class ContextNodeType sealed
public final class ContextNodeType
public final class ContextNodeType
Hinweise
Die ContextNode.Type-Eigenschaft und die InkAnalyzer.FindNodesOfType-Methode verwenden häufig die Felder dieser Klasse.
Beispiele
In diesem Beispiel wird die Text-Eigenschaft des TextBox-Objekts selectedResultsTextBox auf eine passende Zeichenfolge für einen ContextNode, selectedNode festgelegt. Das Beispiel verwendet die Type-Eigenschaft, um abhängig vom Typ des ContextNode-Objekts die Art des anzuzeigenden Texts auszuwählen.
Select Case selectedNode.Type
Case Microsoft.Ink.ContextNodeType.WritingRegion
Dim writingRegion As WritingRegionNode = _
CType(selectedNode, WritingRegionNode)
selectedResultsTextBox.Text = writingRegion.GetRecognizedString()
Case Microsoft.Ink.ContextNodeType.Paragraph
Dim paragraph As ParagraphNode = _
CType(selectedNode, ParagraphNode)
selectedResultsTextBox.Text = paragraph.GetRecognizedString()
Case Microsoft.Ink.ContextNodeType.Line
Dim line As LineNode = _
CType(selectedNode, LineNode)
selectedResultsTextBox.Text = line.GetRecognizedString()
Case Microsoft.Ink.ContextNodeType.InkWord
Dim inkWord As InkWordNode = _
CType(selectedNode, InkWordNode)
Dim parentNode As ContextNode = inkWord.ParentNode
If TypeOf parentNode Is LineNode Then
Dim parentLine As LineNode = CType(parentNode, LineNode)
' Put parent line's recognized string into the text box
selectedResultsTextBox.Text = parentLine.GetRecognizedString()
' Select the text that corresponds to the ink word
Dim subNodes As New ContextNodeCollection(theInkAnalyzer)
subNodes.Add(inkWord)
Dim start As Integer
Dim length As Integer
parentLine.GetTextRangeFromNodes(subNodes, start, length)
If start >= 0 AndAlso length > 0 Then
selectedResultsTextBox.Select(start, length)
End If
End If
' Show the time stamp
If inkWord.ContainsPropertyData(Me.timeStampGuid) Then
Dim timeStamp As DateTime = _
CType(inkWord.GetPropertyData(Me.timeStampGuid), DateTime)
timeStampLabel.Text = timeStamp.ToShortTimeString()
End If
' Snippet to demonstrate GetPropertyDataIds
Dim propertyDataIds() As Guid = inkWord.GetPropertyDataIds()
' Snippets to demonstrate loading and saving
Dim data As Byte() = inkWord.SavePropertiesData()
If (Not inkWord.LoadPropertiesData(data)) Then
MessageBox.Show("Cannot load property data")
End If
Case Microsoft.Ink.ContextNodeType.InkDrawing
Dim drawingNode As InkDrawingNode = CType(selectedNode, InkDrawingNode)
selectedResultsTextBox.Text = drawingNode.GetShapeName()
Case Microsoft.Ink.ContextNodeType.InkBullet
Dim bulletNode As InkBulletNode = CType(selectedNode, InkBulletNode)
selectedResultsTextBox.Text = bulletNode.GetRecognizedString()
Case Microsoft.Ink.ContextNodeType.Object
Dim selectedObject As ObjectNode = selectedNode
selectedResultsTextBox.Text = selectedObject.GetRecognizedString()
Case Microsoft.Ink.ContextNodeType.CustomRecognizer
Dim customRecognizer As CustomRecognizerNode = selectedNode
selectedResultsTextBox.Text = customRecognizer.GetRecognizedString()
Case Else
selectedResultsTextBox.Text = String.Empty
End Select
if (selectedNode.Type == Microsoft.Ink.ContextNodeType.WritingRegion)
{
WritingRegionNode writingRegion = (WritingRegionNode)selectedNode;
selectedResultsTextBox.Text = writingRegion.GetRecognizedString();
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.Paragraph)
{
ParagraphNode paragraph = (ParagraphNode)selectedNode;
selectedResultsTextBox.Text = paragraph.GetRecognizedString();
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.Line)
{
LineNode line = (LineNode)selectedNode;
selectedResultsTextBox.Text = line.GetRecognizedString();
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.InkWord)
{
InkWordNode inkWord = (InkWordNode)selectedNode;
ContextNode parentNode = inkWord.ParentNode;
if (parentNode is LineNode)
{
LineNode parentLine = (LineNode)parentNode;
// Put parent line's recognized string into the text box
selectedResultsTextBox.Text = parentLine.GetRecognizedString();
// Select the text that corresponds to the ink word
ContextNodeCollection subNodes = new ContextNodeCollection(theInkAnalyzer);
subNodes.Add(inkWord);
int start = 0;
int length = 0;
parentLine.GetTextRangeFromNodes(subNodes, out start, out length);
if (start >= 0 && length > 0)
{
selectedResultsTextBox.Select(start, length);
}
}
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.InkDrawing)
{
InkDrawingNode drawingNode = (InkDrawingNode)selectedNode;
selectedResultsTextBox.Text = drawingNode.GetShapeName();
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.InkBullet)
{
InkBulletNode bulletNode = (InkBulletNode)selectedNode;
selectedResultsTextBox.Text = bulletNode.GetRecognizedString();
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.CustomRecognizer)
{
CustomRecognizerNode customRecognizer = (CustomRecognizerNode)selectedNode;
selectedResultsTextBox.Text = customRecognizer.GetRecognizedString();
}
else if (selectedNode.Type == Microsoft.Ink.ContextNodeType.Object)
{
ObjectNode selectedObject = (ObjectNode)selectedNode;
selectedResultsTextBox.Text = selectedObject.GetRecognizedString();
}
else
{
selectedResultsTextBox.Text = String.Empty;
}
Vererbungshierarchie
System.Object
Microsoft.Ink.ContextNodeType
Threadsicherheit
Alle öffentlichen static (Shared in Visual Basic)-Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.
Plattformen
Windows Vista
.NET Framework und .NET Compact Framework unterstützen nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen für .NET Framework.
Versionsinformationen
.NET Framework
Unterstützt in: 3.0