Agenda Windows 8 Metro Style Windows Runtime A .NET Developer's View of Windows 8 Application Development

4. PHONE PC SLATES TV XBOX
CLOUD PRODUCTIVTY RICH COMMUNICATIONS SERVER

5. Metro style Apps Desktop Apps
View
XAML HTML / CSS
Controller
JavaScript
Model
C/C++ C#, VB HTML C C#
(Chakra) JavaScrip C++ VB
t
Windows Runtime APIs
System Services
Communication Graphics & Devices &
& Data Media Printing
Application Model Internet .NET
Explorer
Win32 SL
Kernel
Windows Kernel Services

7. METRO
MODERN

11. Metro style app
Language Support
(CLR, WinJS, CRT)
Language Projection
UI Pickers Controls Media
Web Host (HTML,
CSS, JavaScript))
Windows XAML Storage Network …
Metadata &
Namespace
Windows Runtime Core Runtime Broker
Windows Core

12. Strings HSTRING Avoids copying in multiple
languages
Basic Types INT32, UINT64 * Pointers allowed in limited cases
Enumerations enum AsyncStatus Flag or non-flag styles
Structures struct Rect; Can contain strings, but not
interfaces
Simple Arrays INT32 [] For very basic collections
Interfaces IInspectable Methods are defined in interfaces
Generic IVector<T> Type-generic interface
Interfaces
Runtime Class Windows.Storage.Stora Binds interfaces to make a class
geFile

14. App gets 5s to handle App is not notified
suspend before termination
User suspending Suspende Terminate
Running Low
Launche d d
App Memory
s App resuming App App
Apps are notified
when they have been
resumed
Splash No code
Code gets to run App not running
screen runs

16. native
namespace
using Windows.Storage; native type native method
using System;
using System.IO;
using System.Threading.Tasks;
class Sample {
static async Task WriteAsync(StorageFolder wrtfolder, string filename, string text) {
var wrtFile = await wrtFolder.CreateFileAsync(filename);
managed
var wrtStream = await wrtFile.OpenAsync(FileAccessMode.ReadWrite);
C# feature argument
using (Stream stream = wrtStream.OpenWrite()) {
passed to native
API
using (var writer = new StreamWriter(stream)) {
writer.WriteLine(text);
}
}
} managed type
} returned from a
seemingly
native method

17. .NET Framework 4.5 Windows Phone 7
Silverlight 5
.NET Profile for Metro style
apps

20. Suresh.Balla@neudesic.com
Naresh.Kumar@neudesic.com