XNA Framework and Windows Phone 8 development

 

You cannot create new XNA projects that target Windows Phone 8 Developer Preview

You cannot create new XNA projects, that target Windows Phone 8 Developer Preview. If you select an XNA project template, then you can only choose Windows Phone OS 7.1 as the target operating system.

You cannot upgrade existing XNA projects to target Windows Phone 8 Developer Preview

You cannot upgrade existing XNA projects, to target Windows Phone 8 Developer Preview.

You can continue to develop and maintain XNA projects that target Windows Phone 7.1

You can continue to develop and maintain new or existing XNA projects, that target Windows Phone 7.1.

You can use certain XNA Framework assemblies in projects that target Windows Phone 8 Developer Preview

You can reference and use the following XNA Framework assemblies in apps that target Windows Phone 8 Developer Preview:

• Microsoft.Xna.Framework.dll
• Microsoft.Xna.Framework.Input.Touch.dll
• Microsoft.Xna.Framework.Audio.dll
• Microsoft.Xna.Framework.Media.dll
• Microsoft.Xna.Framework.MediaLibraryExtensions.dll
• Microsoft.Xna.Framework.GamerServices.dll
• Microsoft.Xna.Framework.GamerServicesExtensions.dll

 

 

Game

 

DirectX for Windows Phone

 

Microsoft Media Foundation for Windows Phone

Applies to: Windows Phone 8 Developer Preview only

 

Microsoft Media Foundation (MF) is a framework for audio and video capture and playback for the desktop. Microsoft Media Foundation for Windows Phone is a reimplementation of a subset of the MF APIs. This feature enables Windows Phone 8 Developer Preview apps to implement the following scenarios.

• Rendering video to textures in apps that use native code.
• Displaying cinematics for games.
• Playing in-game background audio in apps that use native code, such as a game soundtrack.

 

XAML and Direct3D apps for Windows Phone

 

Applies to: Windows Phone 8 Developer Preview only

 

With Windows Phone 8 Developer Preview, you can use Direct3D to render graphics that are displayed behind or inline with XAML controls and content. With the DrawingSurfaceBackgroundGrid control, your graphics are displayed across the entire screen, below any other XAML elements on the page, including any elements in the frame. With the DrawingSurface control, you can choose an area of the screen to draw on. The size and layout of your drawing surface are handled just as they are with other XAML controls. Both of these controls require your application to create a Windows Phone Runtime component defining a class that implements an interface, either IDrawingSurfaceBackgroundContentProvider or IDrawingSurfaceCOntentProvider, and hosts the actual Direct3D drawing code. To receive touch input, your class must also implement IDrawingSurfaceManipulationHost.

 

Native audio APIs for Windows Phone 8

 

Applies to: Windows Phone 8 Developer Preview only

 

Windows Phone 8 Developer Preview apps can use the WASAPI and XAudio2 APIs to play and process audio and manage audio streams. This topic describes these interfaces and some of the differences between the desktop and phone implementations.

 

This topic contains the following sections.