1. Combining XAML and DirectX
Microsoft Consumer Channels and Central Marketing Group
7/22/2019
Combining XAML and DirectX
Jesse Bishop
Program Manager, Windows XAML team
Microsoft Corporation
© 2012 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. Review: XAML in Windows 8
7/22/2019
Review: XAML in Windows 8
Your Metro-style UI framework
Built in and custom controls
Layout, styling, databinding
Media, animation, drawing
Design-time tools
A focus on performance
Leveraging hardware
Independent animations
Fast rendering and composition
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

3. Review: DirectX in Windows 8
7/22/2019
Review: DirectX in Windows 8
Your graphics solution
Everything in Windows 8 is built around DirectX: hardware to OS to UI frameworks
Control vs. Complexity
A tradeoff between difficulty and power of lower level APIs
More work to align with Metro style guidelines
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

4. Rich UI + Real-time Graphics
7/22/2019
Rich UI + Real-time Graphics
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

5. The Best of Both Worlds XAML DirectX Complex 2D/3D graphics, text
7/22/2019
The Best of Both Worlds
XAML
Interactivity, control model
UI, drawing, animations
Data binding, media, HTML
Design-time experience
DirectX
Highest performance rendering
Direct device access
Complex 2D/3D graphics, text
Image effects
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

6. When do you want UI + Graphics?
7/22/2019
When do you want UI + Graphics?
Example scenarios:
Visual design, modeling, creativity
Complex image processing
Large documents, maps
Simulations
Games
1. DirectX graphics added to a primarily XAML UI
2. Large-scale DirectX graphics mixed with some UI
3. DirectX-focused app with minimal UI
A one-size-fits-all approach wasn’t sufficient across the broad range of scenarios.
So, we added 3 XAML types which each target a different need.
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

7. Interop Functionality
7/22/2019
Interop Functionality
Integration
Easy composition of XAML + DirectX using familiar XAML model
All functionality of both XAML and DirectX
Performance
Low-latency input and interactivity
Incremental rendering for both XAML and DirectX content
Low overhead: retained-mode XAML and immediate-mode DirectX together
C++ Only
XAML code-behind can be managed, but interop DirectX is C++ only (without wrappers)
Query for native interfaces of XAML WinRT types to access interop methods
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

8. 1. DirectX graphics added to a primarily XAML UI
7/22/2019
1. DirectX graphics added to a primarily XAML UI
2. Large-scale DirectX graphics mixed with some UI
3. DirectX-focused app with minimal UI
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

9. SurfaceImageSource A XAML ImageSource type.
7/22/2019
SurfaceImageSource
A XAML ImageSource type.
You can draw any 2D/3D content with DirectX then use it to fill any XAML element.
Framework supplies a DX surface you draw to whenever you want to update content.
Conceptually similar to WPF’s D3DImage – but easier and more powerful
Fully integrated with XAML composition: z-index, transforms, animation.
No “airspace” issues
ImageBrush^ brush = ref new ImageBrush();
brush->ImageSource = ref new SurfaceImageSource(300, 300);
Ellipse1->Fill = brush;
<Ellipse
x:Name="Ellipse1"
Stroke="Black"
Height="300"
Width="300" />
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

10. SurfaceImageSource Definition
7/22/2019
SurfaceImageSource Definition
interface ISurfaceImageSourceNative: IUnknown {
SetDevice(IDXGIDevice *pDevice);
BeginDraw(
RECT updateRect,
IDXGISurface** pSurface,
POINT* offset );
EndDraw(); };
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

11. demo SurfaceImageSource 7/22/2019
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

12. 2. Large-scale DirectX graphics mixed with some UI
7/22/2019
1. DirectX graphics added to a primarily XAML UI
2. Large-scale DirectX graphics mixed with some UI
3. DirectX-focused app with minimal UI
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

13. VirtualSurfaceImageSource
7/22/2019
VirtualSurfaceImageSource
Extends SurfaceImageSource concept to support huge virtualized areas.
Useful when content is larger than what fits on the screen.
Potentially MUCH larger.
Uses a tiling + callback approach.
Content is split into rectangular regions.
Framework requests updates from your app when it needs to render a region.
Performance characteristics are tuned for large content.
Automatically integrates with XAML ScrollViewer so it knows what’s currently visible.
Manages a smart cache of tiles.
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

14. 7/22/2019
Direct2d magazine SDK sample: available from the Dev Center online
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

15. VirtualSurfaceImageSource Definition
7/22/2019
VirtualSurfaceImageSource Definition
interface IVirtualSurfaceImageSourceNative: ISurfaceImageSourceNative {
RegisterForUpdatesNeeded(IVirtualSurfaceUpdatesCallbackNative *pCallback);
GetUpdateRects(RECT *pUpdates, DWORD count);
GetUpdateRectCount(DWORD *pCount);
Invalidate(RECT updateRect);
/* ... */ };
interface IVirtualSurfaceUpdatesCallbackNative: IUnknown
UpdatesNeeded();
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

16. VirtualSurfaceImageSource Usage
7/22/2019
VirtualSurfaceImageSource Usage 1.
Register your UpdatesNeeded() callback
This gets called when a region of the surface needs to be updated
Get the list of tiles that need to be updated with GetUpdateRects()
Draw updates using the same BeginDraw()/EndDraw() approach
If a region needs an update, Invalidate() it
Especially for off-screen content, since you can also update using BeginDraw()/EndDraw()
You can dynamically resize the total area as needed 2. 3. 4. 5.
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

17. 3. DirectX-focused app with minimal UI
7/22/2019
1. DirectX graphics added to a primarily XAML UI
2. Large-scale DirectX graphics mixed with some UI
3. DirectX-focused app with minimal UI
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

18. SwapChainBackgroundPanel
7/22/2019
SwapChainBackgroundPanel
Full-screen DirectX app with XAML content as an overlay.
Inherits from Grid control to enable easy XAML layout
Full control of DirectX surface.
Enables low latency interaction and control over present timing
Not required to be tied to the XAML UI thread, though it can be
Tradeoff between more control vs. closer integration with XAML scene.
Full-screen only
Must be the root element of an app
XAML child elements are drawn on top
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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. SwapChainBackgroundPanel Definition
7/22/2019
SwapChainBackgroundPanel Definition
interface ISwapChainBackgroundPanelNative: IUnknown {
SetSwapChain(IDXGISwapChain *pSwapChain); };
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

20. Using SwapChainBackgroundPanel
7/22/2019
Using SwapChainBackgroundPanel
<SwapChainBackgroundPanel x:Class="MyApp.MainPage"
x:Name="SwapChainPanel"
PointerMoved="OnPointerMoved">
<TextBlock Text="Here's some XAML content!" />
</SwapChainBackgroundPanel>
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

21. Creating the Swap Chain
7/22/2019
Creating the Swap Chain
dxgiFactory-> (
m_d3dDevice.Get(),
    &swapChainDesc,
nullptr,
    &m_swapChain
    );
ComPtr< > panelNative;
reinterpret_cast<IUnknown*>(SwapChainPanel)->QueryInterface(
IID_PPV_ARGS(&panelNative) );
panelNative-> (m_swapChain.Get());
CreateSwapChainForComposition
ISwapChainBackgroundPanelNative
SetSwapChain
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

22. SwapChainBackgroundPanel Tips
7/22/2019
SwapChainBackgroundPanel Tips
Adding XAML children
Be mindful of overdraw: scope XAML element sizes to just the area required to display content
Use DebugSettings::IsOverdrawHeatMapEnabled to visualize overdraw
Drawing content
Create a landscape swap chain and apply rotation as needed
CompositionTarget::Rendering event for real-time updates on XAML UI thread
Async queue to a 2nd DX device for long computation or render tasks
Input handling
Can use normal XAML input event handlers on the SwapChainBackgroundPanel element
Xinput for controllers if applicable
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

23. SwapChainBackgroundPanel
7/22/2019
App Composition DX
XAML
XAML DX
SwapChainBackgroundPanel
SurfaceImageSource
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

24. SwapChainBackgroundPanel
demo

25. Recap Three approaches to combining XAML + DirectX
7/22/2019
Recap
Three approaches to combining XAML + DirectX
SurfaceImageSource, VirtualSurfaceImageSource, SwapChainBackgroundPanel
You can mix and match in the same app
Consider the scenario you’re targeting
XAML alone will work great for many apps – retained-mode graphics with smooth 60 fps animations
SurfaceImageSource for close integration with XAML composition at a per-element level
VirtualSurfaceImageSource for scrolling/zooming large-scale DirectX content
SwapChainBackgroundPanel for adding UI to full-screen DirectX games and apps
Structuring your app
Define your Metro-style UI using XAML markup
Use XAML code-behind for UI-related processing such as input handling and view state changes
Wrapping interop code in a native WinRT DLL allows it to be used from managed code as well
Query XAML type for its native interface to access DirectX interop methods
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.

26. Resources Blog: Combining XAML and DirectX
7/22/2019
Resources
Blog: Combining XAML and DirectX
MSDN: DirectX and XAML interop
DirectX + XAML 3D game sample app
Other sample apps
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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. Microsoft Consumer Channels and Central Marketing Group
7/22/2019
© 2012 Microsoft Corporation. All rights reserved. Microsoft, Windows, 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.
© 2012 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.