WritingRegionNode Class
Represents a group of paragraphs with similar orientation.
Assembly: Microsoft.Ink.Analysis (in Microsoft.Ink.Analysis.dll)
A writing region has a single reading order, such as top down.
Several writing regions can coexist in the same document on the same page if they have different orientations. For example, if a user writes notes that are primarily horizontal but then scribbles a few words diagonally in a corner, the diagonal words are considered to have a different orientation. A new WritingRegion is created for that diagonal text.
A WritingRegionNode object can contain the following types of child elements:
Any number of ParagraphNode objects.
Any number of nodes with an unknown Guid value.
For more information, see conceptual topic on WritingRegion and AlignmentLevel.
The following example takes a TextBox, selectedResultsTextBox, whose Text property has previously been set to the value returned by GetRecognizedString for a WritingRegionNode, writingRegion. The user has selected some text in the TextBox. The example code marks the Strokes that corresponds to that selection.
' Find out what's been selected in the text box Dim selectionStart As Integer = selectedResultsTextBox.SelectionStart Dim selectionLength As Integer = selectedResultsTextBox.SelectionLength ' Return if no text is selected. ' selectionLength must be > 0 or GetNodesFromTextRange(...) ' will throw an ArgumentOutOfRangeException If selectionLength = 0 Then Return End If ' Get the nodes that correspond to that range Dim selectedRegionSubNodes As ContextNodeCollection = _ writingRegion.GetNodesFromTextRange(selectionStart, selectionLength) ' Use the new start and length value to update the ' selection in the TextBox selectedResultsTextBox.SelectionStart = selectionStart selectedResultsTextBox.SelectionLength = selectionLength ' First, set all strokes to black Dim inkStroke As Stroke For Each inkStroke In writingRegion.Strokes inkStroke.DrawingAttributes = New DrawingAttributes(Color.Black) Next inkStroke ' Next, set all selected sub nodes to red Dim node As ContextNode For Each node In selectedRegionSubNodes For Each inkStroke In node.Strokes inkStroke.DrawingAttributes = New DrawingAttributes(Color.Red) Next inkStroke Next node
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.