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ContextNodeType Class
Visual Studio 2008
Defines values that specify the type of ContextNode object.
Assembly: Microsoft.Ink.Analysis (in Microsoft.Ink.Analysis.dll)
The ContextNode.Type property and the InkAnalyzer.FindNodesOfType method frequently use the fields of this class.
This example sets the Text property of a TextBox, selectedResultsTextBox, to show an appropriate string for a ContextNode, selectedNode. It uses the Type property to choose the kind of text to show, depending on the type of the ContextNode.
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
Windows 7, Windows Vista, Windows Server 2008 R2, Windows Server 2008
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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