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WritingRegionNode Class

Represents a group of paragraphs with similar orientation.

Namespace:  Microsoft.Ink
Assembly:  Microsoft.Ink.Analysis (in Microsoft.Ink.Analysis.dll)

public sealed class WritingRegionNode : ContextNode

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:

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 
					int selectionStart = selectedResultsTextBox.SelectionStart;
					int selectionLength = selectedResultsTextBox.SelectionLength;

                    // Return if no text is selected. 
                    // selectionLength must be > 0 or GetNodesFromTextRange(...)  
                    // will throw an ArgumentOutOfRangeException 
                    if (selectionLength == 0)

                    // Get the nodes that correspond to that range
					ContextNodeCollection selectedRegionSubNodes =
							writingRegion.GetNodesFromTextRange(ref selectionStart, ref 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 
					foreach (Stroke stroke in writingRegion.Strokes)
						stroke.DrawingAttributes =
									new DrawingAttributes(Color.Black);
					// Next, set all selected sub nodes to red 
					foreach (ContextNode node in selectedRegionSubNodes)
						foreach (Stroke stroke in node.Strokes)
							stroke.DrawingAttributes =
									new DrawingAttributes(Color.Red);


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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.

.NET Framework

Supported in: 3.0