Initial WPF content migrated (#17)

* Reset branch for WPF changes

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* Add snippets for WPF... 6794 files!!!!

* Add missing snippets

* update file updated between migration

* Fix paths to include

* update breadcrumb and toc

* fix index links

* fix index links

* fix index links

* fix markdown

dotnet-desktop-guide/framework/wpf/graphics-multimedia/visual-layer-programming.md

@@ -0,0 +1,28 @@
+---
+title: "Visual Layer Programming"
+ms.date: "03/30/2017"
+f1_keywords: 
+  - "AutoGeneratedOrientationPage"
+helpviewer_keywords: 
+  - "visual objects [WPF]"
+  - "graphics [WPF], visual layer"
+  - "rendering support with Visual objects [WPF]"
+  - "visual layer [WPF]"
+ms.assetid: d82c89db-077f-4c3c-a4f8-310ebfbe0fe2
+---
+# Visual Layer Programming
+The <xref:System.Windows.Media.Visual> object is a core [!INCLUDE[TLA2#tla_winclient](../../../includes/tla2sharptla-winclient-md.md)] object, whose primary role is to provide rendering support. User interface controls, such as <xref:System.Windows.Controls.Button> and <xref:System.Windows.Controls.TextBox>, derive from the <xref:System.Windows.Media.Visual> class, and use it for persisting their rendering data.  
+  
+## In This Section  
+ [Hit Testing in the Visual Layer](hit-testing-in-the-visual-layer.md)  
+ [Using DrawingVisual Objects](using-drawingvisual-objects.md)  
+ [Tutorial: Hosting Visual Objects in a Win32 Application](tutorial-hosting-visual-objects-in-a-win32-application.md)  
+ [How-to Topics](visual-layer-programming-how-to-topics.md)  
+  
+## See also
+
+- <xref:System.Windows.Media.Visual>
+- <xref:System.Windows.Media.VisualTreeHelper>
+- <xref:System.Windows.Media.DrawingVisual>
+- [WPF Graphics Rendering Overview](wpf-graphics-rendering-overview.md)
+- [Graphics and Multimedia](index.md)