Links: .NET Desktop - framework\wpf (#109)

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Co-authored-by: Andy De George <[email protected]>

dotnet-desktop-guide/framework/wpf/advanced/intercepting-input-from-the-stylus.md

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 ms.assetid: 791bb2f0-4e5c-4569-ac3c-211996808d44
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 # Intercepting Input from the Stylus
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 The <xref:System.Windows.Input.StylusPlugIns> architecture provides a mechanism for implementing low-level control over <xref:System.Windows.Input.Stylus> input and the creation of digital ink <xref:System.Windows.Ink.Stroke> objects. The <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> class provides a mechanism for you to implement custom behavior and apply it to the stream of data coming from the stylus device for the optimal performance.  
   
  This topic contains the following subsections:  
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 - [Conclusion](#Conclusion)  
   
 <a name="Architecture"></a>
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 ## Architecture  
- The <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> is the evolution of the [StylusInput](https://docs.microsoft.com/previous-versions/dotnet/netframework-3.5/ms574861(v=vs.90)) APIs, described in [Accessing and Manipulating Pen Input](https://docs.microsoft.com/previous-versions/ms818317(v%3dmsdn.10)).  
+
+ The <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> is the evolution of the [StylusInput](/previous-versions/dotnet/netframework-3.5/ms574861(v=vs.90)) APIs, described in [Accessing and Manipulating Pen Input](/previous-versions/ms818317(v%3dmsdn.10)).  
   
  Each <xref:System.Windows.UIElement> has a <xref:System.Windows.UIElement.StylusPlugIns%2A> property that is a <xref:System.Windows.Input.StylusPlugIns.StylusPlugInCollection>. You can add a <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> to an element's <xref:System.Windows.UIElement.StylusPlugIns%2A> property to manipulate <xref:System.Windows.Input.StylusPoint> data as it is generated. <xref:System.Windows.Input.StylusPoint> data consists of all the properties supported by the system digitizer, including the <xref:System.Windows.Input.StylusPoint.X%2A> and <xref:System.Windows.Input.StylusPoint.Y%2A> point data, as well as <xref:System.Windows.Input.StylusPoint.PressureFactor%2A> data.  
   
  Your <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> objects are inserted directly into the stream of data coming from the <xref:System.Windows.Input.Stylus> device when you add the <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> to the <xref:System.Windows.UIElement.StylusPlugIns%2A> property. The order in which plug-ins are added to the <xref:System.Windows.UIElement.StylusPlugIns%2A> collection dictates the order in which they will receive <xref:System.Windows.Input.StylusPoint> data. For example, if you add a filter plug-in that restricts input to a particular region, and then add a plug-in that recognizes gestures as they are written, the plug-in that recognizes gestures will receive filtered <xref:System.Windows.Input.StylusPoint> data.  
   
 <a name="ImplementingStylusPlugins"></a>
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 ## Implementing Stylus Plug-ins  
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  To implement a plug-in, derive a class from <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn>. This class is applied o the stream of data as it comes in from the <xref:System.Windows.Input.Stylus>. In this class you can modify the values of the <xref:System.Windows.Input.StylusPoint> data.  
   
 > [!CAUTION]
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 [!code-vb[AdvancedInkTopicsSamples#3](~/samples/snippets/visualbasic/VS_Snippets_Wpf/AdvancedInkTopicsSamples/VisualBasic/DynamicRenderer.vb#3)]  
   
 <a name="AddingYourPluginToAnInkCanvas"></a>
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 ## Adding Your Plug-in to an InkCanvas  
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  The easiest way to use your custom plug-in is to implement a class that derives from InkCanvas and add it to the <xref:System.Windows.UIElement.StylusPlugIns%2A> property.  
   
  The following example demonstrates a custom <xref:System.Windows.Controls.InkCanvas> that filters the ink.  
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  [!code-csharp[AdvancedInkTopicsSamples#5](~/samples/snippets/csharp/VS_Snippets_Wpf/AdvancedInkTopicsSamples/CSharp/Window1.xaml.cs#5)]  
   
 <a name="Conclusion"></a>
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 ## Conclusion  
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  By deriving your own <xref:System.Windows.Input.StylusPlugIns.StylusPlugIn> classes and inserting them into <xref:System.Windows.Input.StylusPlugIns.StylusPlugInCollection> collections, you can greatly enhance the behavior of your digital ink. You have access to the <xref:System.Windows.Input.StylusPoint> data as it is generated, giving you the opportunity to customize the <xref:System.Windows.Input.Stylus> input. Because you have such low-level access to the <xref:System.Windows.Input.StylusPoint> data, you can implement ink collection and rendering with optimal performance for your application.  
   
 ## See also
 
 - [Advanced Ink Handling](advanced-ink-handling.md)
-- [Accessing and Manipulating Pen Input](https://docs.microsoft.com/previous-versions/ms818317(v%3dmsdn.10))
+- [Accessing and Manipulating Pen Input](/previous-versions/ms818317(v%3dmsdn.10))