There are a number of sessions happening at the BUILD conference this week related to DirectX, games, and C++ development on Windows. The presentations are available on Channel 9.
DirectX 11.2
Massive Virtual Textures for Games: Direct3D Tiled Resources
Innovations in High Performance 2D Graphics with DirectX
DirectX Graphics Debugging Tools
Windows Store apps
Bringing Desktop PC Games to the Windows Store
Cutting Edge Games on Windows Tablets
Accelerating Windows Store Game Development with Middleware
Bringing Halo: Spartan Assault to Windows Tablets and Mobile Devices
Visual Studio 2013
What’s New in Visual Studio 2013 for C++ Developers
Windows Phone
Windows Phone Game Development Basics