DirectComposition Backface and D2D Batching sample
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This sample demonstrates how to use the DirectComposition API to apply backface visibility to a visual element. Backface visibility can be used to show and hide the back side of a DirectComposition visual element.

This sample also demonstrates a performance optimization of batching D2D BeginDraw/EndDraw calls.

**Warning**  This sample requires Microsoft Visual Studio Ultimate 2012 and doesn't compile in Microsoft Visual Studio Express 2012 for Windows 8.

Operating system requirements
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Client

Windows 8.1

Server

Windows Server 2012 R2

Build the sample
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1.  Start Microsoft Visual Studio and select **File** \> **Open** \> **Project/Solution**.
2.  Go to the directory named for the sample, and double-click the Visual Studio Solution (.sln) file.
3.  Press F7 or use **Build** \> **Build Solution** to build the sample.

Run the sample
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To debug the app and then run it, press F5 or use **Debug** \> **Start Debugging**. To run the app without debugging, press Ctrl+F5 or use **Debug** \> **Start Without Debugging**.