InkAnalyzer.FindInkLeafNodes Method
Returns a ContextNodeCollection that contains all ink leaf nodes (ink leaf nodes are the ContextNode objects that contain ink strokes).
Namespace: System.Windows.Ink
Assembly: IAWinFX (in IAWinFX.dll)
Syntax
'Declaration
Public Function FindInkLeafNodes As ContextNodeCollection
'Usage
Dim instance As InkAnalyzer
Dim returnValue As ContextNodeCollection
returnValue = instance.FindInkLeafNodes()
public ContextNodeCollection FindInkLeafNodes()
public:
ContextNodeCollection^ FindInkLeafNodes()
public function FindInkLeafNodes() : ContextNodeCollection
Return Value
Type: System.Windows.Ink.ContextNodeCollection
All ink leaf nodes which include ContextNode objects that, in turn, contain ink strokes.
Remarks
Examples of ink leaf nodes are InkWordNode, InkDrawingNode, and InkBulletNode.
Leaf nodes do not contain child nodes.
Examples
The following example loops through all the ink leaf nodes of an InkAnalyzer, named theInkAnalyzer, to find the ContextNode with the lowest bottom bound. Once it finds the node with the lowest bound, it colors strokes associated with the lowest ContextNode red.
Dim lowest As Double = Double.MinValue
Dim lowestNode As ContextNode = Nothing
Dim leafNode As ContextNode
For Each leafNode In theInkAnalyzer.FindInkLeafNodes()
' Find lowest node
If leafNode.Location.GetBounds().Bottom > lowest Then
lowestNode = leafNode
lowest = leafNode.Location.GetBounds().Bottom
End If
' Set each stroke to black
Dim stroke As Stroke
For Each stroke In leafNode.Strokes
stroke.DrawingAttributes.Color = Colors.Black
Next stroke
Next leafNode
' Set lowest stroke to red
If Not (lowestNode Is Nothing) Then
Dim stroke As Stroke
For Each stroke In lowestNode.Strokes
stroke.DrawingAttributes.Color = Colors.Red
Next stroke
End If
double lowest = double.MinValue;
ContextNode lowestNode = null;
foreach (ContextNode leafNode in theInkAnalyzer.FindInkLeafNodes())
{
// Find lowest node
if (leafNode.Location.GetBounds().Bottom > lowest)
{
lowestNode = leafNode;
lowest = leafNode.Location.GetBounds().Bottom;
}
// Set each stroke to black
foreach (Stroke stroke in leafNode.Strokes)
{
stroke.DrawingAttributes.Color = Colors.Black;
}
}
// Set lowest stroke to red
if (lowestNode != null)
{
foreach (Stroke stroke in lowestNode.Strokes)
{
stroke.DrawingAttributes.Color = Colors.Red;
}
}
Platforms
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
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.
Version Information
.NET Framework
Supported in: 3.0