1. Building Metro style apps that connect to specialized devices
11/8/2018 8:13 PM
HW-747T
Building Metro style apps that connect to specialized devices
George Roussos
Senior Program Manager
Microsoft Corporation
Nar Ganapathy
Partner SDE
Microsoft Corporation
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. Agenda What is a specialized device?
Differentiating your device with an Metro style app
Specialized device access models
Specialized device access APIs
You’ll leave with an understanding of how to…
Access specialized devices from Metro style apps
Choose the right API and access model for your device

3. What is a specialized device?

4. Extensible Built-in Experiences
What is a specialized device?
Devices with
Extensible Built-in Experiences
Printers
Webcam
MB SIM
Specialized
Devices
Portable
Storage
Networked
Other

5. Windows 8 provides flexible APIs to build a Metro style app that showcases your device’s unique functionality.

6. Why… Device makers want the flexibility to differentiate
Not every device can be covered by a built-in experience or API in Windows 8
So we enabled you to create your own experience as a Metro style app

7. Customer benefits App is automatically installed when device connects
Can experience the richness of device with a Metro style app

8. Device maker benefits
A Metro style app can access your device’s unique functionality
Windows 8 installs your app when your device is connected
You can control 100% of pixels displayed
You can control which Metro style apps access your device

9. Specialized device access models

10. Specialized device access models
Open device access
Many apps can access device
Example devices: camera, smartphone, eBook reader
Restricted device access
Access restricted to app(s) declared in device metadata
Example device: credit-card reader

11. Device access architecture

12. Device access for desktop apps
App Process
App
SetupDi API
WPD
HID
WinUSB
CreateFile/DeviceIoControl
I/O Manager
Driver
Device
Microsoft
Partner

13. Comparison with Metro style app model
Desktop model
Application A
Application B
I/O manager – access check per user
Driver
Device
Microsoft
Partner

14. Comparison with Metro style app model
Metro style model
Metro style app A
Metro style app B
Device Access Broker
I/O manager – access check per user
Driver
Device
Microsoft
Partner

15. Specialized device access for Metro style apps
app container
Driver Package
Metro style app (HTML/JS, C#,C++)
Windows. Networking
Windows. Storage
Windows Runtime Component (C++)
DeviceIoControl
Windows Portable Device (WPD)
Device Metadata
Device Broker
I/O Manager
Application Manifest
Driver
Device
Microsoft
Partner

16. Windows Portable Device (WPD)
Specialized device APIs and access models
Category
API Family
Access Model
Specialized
Portable
Windows Portable Device (WPD)
Both
Storage
Windows.Storage
Open
Networked
Windows.Networking
Open
Other
DeviceIOControl
Restricted

17. Windows portable device (WPD) APIs

18. Windows portable device
11/8/2018 8:13 PM
demo
Windows portable device
Based upon the portable device services SDK sample Nokia N8
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. (optional) Windows Runtime Component (C++)
WPD APIs
app container
Application Manifest
<Capabilities>
<DeviceCapability Name=“Device Service GUID” />
</Capabilities>
Metro style app
(optional) Windows Runtime Component (C++)
WPD APIs
Device Metadata
SoftwareInfo.xml
,,,,,,
<DeviceCompanionApplications> <Package>….</Package>
</DeviceCompanionApplications>
Optional Driver
Portable Device
MTP or MSC Class Driver
Microsoft
Partner

20. Storage device APIs

21. Metro style app (HTML/JS, C#, C++)
Windows.Storage APIs
app container
Application Manifest
<Capabilities>
removableStorage
</Capabilities>
Metro style app (HTML/JS, C#, C++)
Windows.Storage APIs
Device Metadata
SoftwareInfo.xml
,,,,,,
<DeviceCompanionApplications> <Package>….</Package>
</DeviceCompanionApplications>
Storage Device
Microsoft
Partner

22. Network device APIs

23. Windows.Networking APIs
app container
Application Manifest
<Capabilities>
Internet
</Capabilities>
Metro style app (HTML/JS, C#, C++)
Windows.Networking APIs
Device Metadata
SoftwareInfo.xml
,,,,,,
<DeviceCompanionApplications> <Package>….</Package>
</DeviceCompanionApplications>
Networked PNP-X Device
Microsoft
Partner

24. DeviceIOControl APIs

25. DeviceIOControl APIs app container Application Manifest
<Capabilities>
<DeviceCapability Name=“GUID for custom device interface class” />
</Capabilities>
Metro style app (e.g., Microsoft.SDKSamples.Mofx2App)
Windows Runtime Component (C++)
CreateDeviceAccessInstance & DeviceIoControl API
Device Metadata
SoftwareInfo.xml
,,,,,,
<PrivilegedApplications> App Identity, AccessCustomDriver
</PrivilegedApplications>
Custom Driver
Other Device
Driver Package
[OsrUsb_Interface_AddProperty]
{Enable restricted interface}
Microsoft
Partner

26. demo DeviceIOControl SDK sample: accessing a custom device
11/8/2018 8:13 PM
demo
DeviceIOControl
SDK sample: accessing a custom device
WDK sample: OSRUSBFX2
OSR USB FX2 learning kit
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

27. Recap

28. Recap Differentiate your specialized device with a Metro style app
Windows 8 has four APIs families for Metro style apps to access the unique functionality of your device
Many apps can access your device in the open device access model
Device makers can control which Metro style apps access their device in the restricted device access model

29. Related sessions [HW-322T] Designing great devices and drivers
[HW-283T] Introducing Metro style device apps
[HW-275T] Building and delivering a great Metro style app for your device
[PLAT-278T] Using connected devices in Metro style apps

30. Further reading and documentation
Windows Dev Center home  
SDK Samples
Custom Device Access
Portable Device Services
Removable Storage
Whitepapers
Metro style Device App for Specialized Devices - Design Guide
The Device Software Lifecycle – Deployment, Acquisition, Uninstall and Update Process
Metro style Device App for Specialized Devices Custom Driver Access Design Guide
Metro style Device App for Specialized Devices Custom Driver Access Development Guide
Questions?
Please visit the forums on the Windows Dev Center at
For best response, please include the Build Session # in the title of your post

31. thank you Feedback and questions http://forums.dev.windows.com
Session feedback

32. 11/8/2018 8:13 PM
© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.