Windows Presentation Foundation

Short description: Graphical subsystem

This article is missing information about WPF's successor and the Avalonia framework. Please expand the article to include this information. Further details may exist on the talk page. (April 2020)

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Windows Presentation Foundation (WPF)Original author(s)| Microsoft

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Developer(s)| .NET Foundation
Initial release| November 21, 2006; 16 years ago (2006-11-21)
Stable release|

v6.0.2 / February 9, 2022; 20 months ago (2022-02-09)[1]

Written in| C#, C++, C
Operating system| Microsoft Windows
Platform| .NET Framework, .NET
Type| Software framework
License| MIT License
Website| learn.microsoft.com/en-us/dotnet/desktop/wpf/

Windows Presentation Foundation (WPF) is a free and open-source graphical subsystem (similar to WinForms) originally developed by Microsoft for rendering user interfaces in Windows-based applications. WPF, previously known as "Avalon", was initially released as part of .NET Framework 3.0 in 2006. WPF uses DirectX and attempts to provide a consistent programming model for building applications. It separates the user interface from business logic, and resembles similar XML-oriented object models, such as those implemented in XUL and SVG.[2]

## Contents

* 1 Overview
* 2 Features
* 2.1 Direct3D
* 2.2 Data binding
* 2.3 Media services
* 2.4 Templates
* 2.5 Animations
* 2.6 Imaging
* 2.7 Effects
* 2.8 Documents
* 2.9 Text
* 2.10 Interoperability
* 2.11 Alternative input
* 2.12 Accessibility
* 3 XAML
* 4 Architecture
* 5 Tools
* 5.1 Microsoft tools
* 5.2 Third-party tools
* 6 Deployment
* 6.1 Internet Explorer
* 6.2 Firefox support
* 7 Microsoft Silverlight
* 8 .NET Micro Framework
* 9 References
* 10 Bibliography
* 11 External links

## Overview

This subsystem is a part of .NET Framework 3.0.

WPF employs XAML, an XML-based language, to define and link various interface elements.[3] WPF applications can be deployed as standalone desktop programs or hosted as an embedded object in a website. WPF aims to unify a number of common user interface elements, such as 2D/3D rendering, fixed and adaptive documents, typography, vector graphics, runtime animation, and pre-rendered media. These elements can then be linked and manipulated based on various events, user interactions, and data bindings.[4]

WPF runtime libraries are included with all versions of Microsoft Windows since Windows Vista and Windows Server 2008. Users of Windows XP SP2/SP3 and Windows Server 2003 can optionally install the necessary libraries.[5][6]

Microsoft Silverlight provided functionality that is mostly a subset of WPF to provide embedded web controls comparable to Adobe Flash. 3D runtime rendering had been supported in Silverlight since Silverlight 5.[7]

At the Microsoft Connect event on December 4, 2018, Microsoft announced releasing WPF as open source project on GitHub. It is released under the MIT License. Windows Presentation Foundation has become available for projects targeting the .NET software framework, however, the system is not cross-platform and is still available only on Windows.[8][9]

## Features

### Direct3D

Graphics, including desktop items like windows, are rendered using Direct3D. This allows the display of more complex graphics and custom themes, at the cost of GDI's wider range of support and uniform control theming. It allows Windows to offload some graphics tasks to the GPU. This reduces the workload on the computer's CPU. GPUs are optimized for parallel pixel computations. This tends to speed up screen refreshes at the cost of decreased compatibility in markets where GPUs are not necessarily as powerful, such as the netbook market.

WPF's emphasis on vector graphics allows most controls and elements to be scaled without loss in quality or pixelization, thus increasing accessibility. With the exception of Silverlight, Direct3D integration allows for streamlined 3D rendering. In addition, interactive 2D content can be overlaid on 3D surfaces natively.[10][11]

### Data binding

* WPF has a built-in set of data services to enable application developers to bind and manipulate data within applications. It supports four types of data binding:
1. one time: where the client ignores updates on the server.
2. one way: where the client has read-only access to data.
3. two way: where client can read from and write data to the server
4. one way to source: where the client has write-only access to data
* LINQ queries, including LINQ to XML, can also act as data sources for data binding.[11]
* Binding of data has no bearing on its presentation. WPF provides data templates to control presentation of data.
* A set of built-in controls is provided as part of WPF, containing items such as button, menu, grids, and list box.
* Dependency Properties can be added to Behaviours or Attached Properties to add custom binding properties.
* A powerful concept in the WPF is the logical separation of a control from its appearance.
* A control's template can be overridden to completely change its visual appearance.
* A control can contain any other control or layout, allowing for a high degree of control over composition.
* Features retained mode graphics. Repainting the display isn't always necessary.

### Media services

* The WPF provides an integrated system for building user interfaces with common media elements like vector and raster images, audio, and video. WPF also provides an animation system and a 2D/3D rendering system.[12]
* WPF provides shape primitives for 2D graphics along with a built-in set of brushes, pens, geometries, and transforms.
* The 3D capabilities in WPF are a subset of the full-feature set provided by Direct3D. However, WPF provides tighter integration with other features like user interfaces, documents, and media. This makes it possible to have 3D user interfaces, 3D documents, or 3D media.
* There is support for most common image formats: BMP, JPEG, PNG, TIFF, Windows Media Photo, GIF, and ICON.
* WPF supports the video formats WMV, MPEG and some AVI files by default, but since it has Windows Media Player running beneath, WPF can use all the codecs installed for it.

### Templates

* In WPF you can define the look of an element directly, via its properties, or indirectly with a template or style. At its simplest a style is a combination of property settings that can be applied to a UI element with a single property attribute. Templates are a mechanism for defining alternative UI for portions of your WPF application. There are several template types available in WPF (ControlTemplate, DataTemplate, HierarchicalDataTemplate, and ItemsPanelTemplate).

Control templates

* Underlying all UI controls in WPF is a new composition model. Every control is composed of one or more ‘visuals’. These visual sub-elements are turned into a hierarchical visual tree by WPF and eventually rendered by the GPU. Because WPF controls are not wrappers for standard Windows controls their UI can be radically changed without affecting the normal behavior of the control.
* Every control in WPF has a default ‘template’ that defines its visual tree. The default template is created by the control author and is replaceable by other developers and designers. The substitute UI is placed within a ControlTemplate.

Data templates

* WPF has a flexible data binding system. UI elements can be populated and synchronized with data from an underlying data model. Rather than showing simple text for the bound data, WPF can apply a data template (replaceable UI for .NET types) before rendering to the visual tree.

### Animations

* WPF supports time-based animations, in contrast to the frame-based approach. This decouples the speed of the animation from how the system is performing.
* WPF supports low level animation via timers and higher level abstractions of animations via the Animation classes.
* Any WPF element property can be animated as long as it is registered as a dependency property.
* Animation classes are based on the .NET type of property to be animated. For instance, changing the color of an element is done with the ColorAnimation class and animating the width of an element (which is typed as a double) is done with the DoubleAnimation class.
* Animations can be grouped into Storyboards.
* Storyboards are the primary way to start, stop, pause and otherwise manipulate the animations.
* Animations can be triggered by external events, including user action.[13]
* Scene redraws are time triggered.[13]
* Presentation timers are initialized and managed by WPF.[13]
* Animation effects can be defined on a per-object basis, which can be accessed directly from XAML markup.[13]

### Imaging

* WPF can natively access Windows Imaging Component (WIC) code and APIs allowing developers to write image codecs for their specific image file formats.

### Effects

* WPF 3.0 provides for Bitmap effects (BitmapEffect class), which are raster effects applied to a Visual. These raster effects are written in unmanaged code and force rendering of the Visual to be performed on the CPU and not hardware accelerated by the GPU. BitmapEffects were deprecated in .NET 3.5 SP 1.
* .NET Framework 3.5 SP1 adds the Effect class, which is a Pixel-Shader 2.0 effect that can be applied to a visual, which allows all rendering to remain on the GPU.
* The Effect class is extensible, allowing applications to specify their own shader effects.
* The Effect class, in .NET 3.5 SP1 and 4.0, ships with two built-in effects, BlurEffect and DropShadowEffect. There are no direct replacements for OuterGlowBitmapEffect, EmbossBitmapEffect and BevelBitmapEffect, previously provided by the deprecated BitmapEffect class. However, there are other ways of achieving the same results with the Effect class. For example, developers can get an outer glow effect by using the DropShadowEffect with its ShadowDepth set to 0.
* Although the BitmapEffect class was marked as deprecated in .Net Framework 3.5 SP1, its use was still allowed and these effects would still render correctly. In .Net Framework 4.0 the BitmapEffect class was effectively deprecated - code referencing BitmapEffect still builds without errors, but no effect gets actually rendered.

### Documents

* WPF natively supports paginated documents. It provides the `DocumentViewer` class, which is for reading fixed layout documents. The `FlowDocumentReader` class offers different view modes such as per-page or scrollable and also reflows text if the viewing area is resized.
* Natively supports XML Paper Specification documents.
* Supports reading and writing paginated documents using Open Packaging Conventions.

### Text

* WPF includes a number of text rendering features that were not available in GDI. This is the first Microsoft programming interface to expose OpenType features to software developers, supporting OpenType, TrueType, and OpenType CFF (Compact Font Format) fonts.
* Support for OpenType typographic features includes:
* Ligatures
* Old-style numerals (for example, parts of the glyph hang below the text baseline)
* Swash variants
* Fractions
* Superscript and subscript
* Small caps
* Line-level justification
* Ruby characters
* Glyph substitution
* Multiple baselines
* Contextual and Stylistic Alternates
* Kerning
* WPF handles texts in Unicode, and handles texts independent of global settings, such as system locale. In addition, fallback mechanisms are provided to allow writing direction (horizontal versus vertical) handled independent of font name; building international fonts from composite fonts, using a group of single-language fonts; composite fonts embedding. Font linking and font fallback information is stored in a portable XML file, using composite font technology.[14] The XML file has extension .CompositeFont.
* The WPF text engine also supports built-in spell checking. It also supports such features as automatic line spacing, enhanced international text, language-guided line breaking, hyphenation, and justification, bitmap effects, transforms, and text effects such as shadows, blur, glow, rotation etc. Animated text is also supported; this refers to animated glyphs, as well as real-time changes in position, size, color, and opacity of the text.
* WPF text rendering takes advantage of advances in ClearType technology, such as sub-pixel positioning, natural advance widths, Y-direction anti-aliasing, hardware-accelerated text rendering, as well as aggressive caching of pre-rendered text in video memory.[15] ClearType cannot be turned off in older WPF 3.x applications.[16] Unlike the ClearType in GDI or GDI+, WPF ClearType does not snap glyphs to pixels horizontally, leading to a loss of contrast disliked by some users.[17] The text rendering engine has been rewritten in WPF 4.0, correcting this issue.[18]
* The extent to which glyphs are cached is dependent on the video card. DirectX 10 cards are able to cache the font glyphs in video memory, then perform the composition (assembling of character glyphs in the correct order, with the correct spacing), alpha-blending (application of anti-aliasing), and RGB blending (ClearType's sub-pixel color calculations), entirely in hardware. This means that only the original glyphs need to be stored in video memory once per font (Microsoft estimates that this would require 2 MB of video memory per font), and other operations such as the display of anti-aliased text on top of other graphics--including video--can also be done with no computation effort on the part of the CPU. DirectX 9 cards are only able to cache the alpha-blended glyphs in memory, thus requiring the CPU to handle glyph composition and alpha-blending before passing this to the video card. Caching these partially rendered glyphs requires significantly more memory (Microsoft estimates 5 MB per process). Cards that don't support DirectX 9 have no hardware-accelerated text rendering capabilities.

### Interoperability

* Windows Forms is also possible through the use of the `ElementHost` and `WindowsFormsHost` classes.

To enable the use of WinForms, the developer executes this from their WPF C# code:

System.Windows.Forms.Integration.WindowsFormsHost.EnableWindowsFormsInterop();

### Alternative input

* WPF supports digital ink-related functionality.
* WPF 4.0 supports multi-touch input on Windows 7 and above.

### Accessibility

* WPF supports Microsoft UI Automation to allow developers to create accessible interfaces.
* This API also allows automated test scripts to interact with the UI.[19]

## XAML

Main page: Extensible Application Markup Language

Following the success of markup languages for web development, WPF introduces eXtensible Application Markup Language (XAML; /ˈzæməl/), which is based on XML. XAML is designed as a more efficient method of developing application user interfaces.[20] The specific advantage that XAML brings to WPF is that XAML is a completely declarative language, allowing the developer (or designer) to describe the behavior and integration of components without the use of procedural programming. Although it is rare that an entire application will be built completely in XAML, the introduction of XAML allows application designers to more effectively contribute to the application development cycle. Using XAML to develop user interfaces also allows for separation of model and view, which is considered a good architectural principle. In XAML, elements and attributes map to classes and properties in the underlying APIs.

As in web development, both layouts and specific themes are well suited to markup, but XAML is not required for either. Indeed, all elements of WPF may be coded in a .NET language (C#, VB.NET). The XAML code can ultimately be compiled into a managed assembly in the same way all .NET languages are.

## Architecture

The WPF architecture. Blue elements are Windows components; brown ones are WPF components.

The architecture of WPF spans both managed code and native code components. However, the public API exposed is only available via managed code. While the majority of WPF is in managed code, the composition engine which renders the WPF applications is a native component. It is named Media Integration Layer (MIL) and resides in `milcore.dll`. It interfaces directly with DirectX and provides basic support for 2D and 3D surfaces, timer-controlled manipulation of contents of a surface with a view to exposing animation constructs at a higher level, and compositing the individual elements of a WPF application into a final 3D "scene" that represents the UI of the application and renders it to the screen.[21][22] The Desktop Window Manager also uses the MIL for desktop and window composition.[23] The media codecs are also implemented in unmanaged code, and are shipped as `windowscodecs.dll`.[21] In the managed world, PresentationCore (`presentationcore.dll`) provides a managed wrapper for MIL and implements the core services for WPF,[21] including a property system that is aware of the dependencies between the setters and consumers of the property, a message dispatching system by means of a `Dispatcher` object to implement a specialized event system and services which can implement a layout system such as measurement for UI elements.[22] PresentationFramework (`presentationframework.dll`) implements the end-user presentational features, including layouts, time-dependent, story-board based animations, and data binding.[22]

WPF exposes a property system for objects which inherit from `DependencyObject`, that is aware of the dependencies between the consumers of the property, and can trigger actions based on changes in properties. Properties can be either hard coded values or expressions, which are specific expressions that evaluate to a result. In the initial release, however, the set of expressions supported is closed.[22] The value of the properties can be inherited from parent objects as well. WPF properties support change notifications, which invoke bound behaviors whenever some property of some element is changed. Custom behaviors can be used to propagate a property change notification across a set of WPF objects. This is used by the layout system to trigger a recalculation of the layout on property-changes, thus exposing a declarative programming style for WPF, whereby almost everything, from setting colors and positions to animating elements can be achieved by setting properties.[22] This allows WPF applications to be written in XAML, which is a declarative mark-up language, by binding the keywords and attributes directly to WPF classes and properties.[24]

The interface elements of a WPF application are maintained as a class of `Visual` objects. Visual objects provide a managed interface to a composition tree which is maintained by Media Integration Layer (MIL). Each element of WPF creates and adds one or more composition nodes to the tree. The composition nodes contain rendering instructions, such as clipping and transformation instructions, along with other visual attributes. Thus the entire application is represented as a collection of composition nodes, which are stored in a buffer in the system memory. Periodically, MIL walks the tree and executes the rendering instructions in each node, thus compositing each element on to a DirectX surface, which is then rendered on screen. MIL uses the painter's algorithm, where all the components are rendered from back of the screen to the front, which allows complex effects like transparencies to be easily achieved. This rendering process is hardware accelerated using the GPU.[22] The composition tree is cached by MIL, creating a retained mode graphics, so that any changes to the composition tree needs only to be incrementally communicated to MIL. This also frees the applications of managing repainting the screen; MIL can do that itself as it has all the information necessary. Animations can be implemented as time-triggered changes to the composition tree. On the user visible side, animations are specified declaratively, by setting some animation effect to some element via a property and specifying the duration. The code-behind updates the specific nodes of the tree, via `Visual` objects, to represent both the intermediate states at specified time intervals as well as the final state of the element. MIL will render the changes to the element automatically.[25] All WPF applications start with two threads: one for managing the UI and another background thread for handling rendering and repainting.[26] Rendering and repainting is managed by WPF itself, without any developer intervention. The UI thread houses the Dispatcher (via an instance of `DispatcherObject`), which maintains a queue of UI operations that need to be performed (as a tree of `Visual` objects), sorted by priority. UI events, including changing a property that affects the layout, and user interaction events raised are queued up in the dispatcher, which invokes the handlers for the events. Microsoft recommends that the event handlers only update the properties to reflect new content for application responsiveness, with the new content being generated or retrieved in a background thread.[26] The render thread picks up a copy of the visual tree and walks the tree calculating which components will be visible and renders them to Direct3D surfaces. The render thread also caches the visual tree, so only changes to the tree need to be communicated, which will result in updating just the changed pixels. WPF supports an extensible layout model. Layout is divided into two phases: Measure; and Arrange. The Measure phase recursively calls all elements and determines the size they will take. In the Arrange phase, the child elements are recursively arranged by their parents, invoking the layout algorithm of the layout module in use.[22][27]

## Tools

A number of development tools are available for developing Windows Presentation Foundation applications.

### Microsoft tools

* Microsoft Visual Studio is a developer-oriented IDE that contains a combination XAML editor and WPF visual designer, beginning with Visual Studio 2008.
* Prior to Visual Studio 2008, the WPF designer add-in, codenamed Cider, was the original release of a WYSIWYG editor for creating WPF windows, pages, and user controls. It was available for Visual Studio 2005 as a Visual Studio 2005 extensions for .NET Framework 3.0 CTP for the initial release of WPF.[28]
* Microsoft Visual Studio Express 2008 and later editions, particularly Visual C# Express and Visual Basic Express, also have the WPF designer integrated.
* Microsoft Blend is a designer-oriented tool that provides an artboard for the creation of WPF applications with 2D and 3D graphics, text and forms content. It generates XAML that may be exported into other tools and shares solution (sln files) and project formats (csproj, vbproj) with Microsoft Visual Studio.
* Microsoft Expression Design is a bitmap and 2D-vector graphics tool for exporting to XAML.
* XAMLPad is a lightweight tool included in the .NET Framework SDK. It can create and render XAML files using a split screen UI layout. It also provides a tree view of the markup in a panel.

### Third-party tools

* SharpDevelop, an open-source .NET IDE, includes WPF application design abilities. It is a free alternative to Visual Studio.[29]
* PowerBuilder .NET by Sybase is a 4GL tool that translates PowerBuilder code, graphical objects to XAML and allows deploying the application as a WPF target.[30]
* Essential Studio for WPF by Syncfusion is a package of over 100 modern WPF UI controls for building beautiful, high performance line-of-business WPF applications.[31]

## Deployment

WPF's deployment model offers both standalone and XAML Browser Applications (XBAP, pronounced "ex-bap") flavors. The programming model for building either type of application is similar.

Standalone applications are those that have been locally installed on the computer using software such as ClickOnce or Windows Installer (MSI) and which run on the desktop. Standalone applications are considered full trust and have full access to a computer's resources.

XAML Browser Applications (XBAPs) are programs that are hosted inside a web browser. Pre-.NET4 XBAP applications run in a partial trust sandbox environment, and are not given full access to the computer's resources and not all WPF functionality is available. The hosted environment is intended to protect the computer from malicious applications. XBAPs can run as fully trusted applications in .NET 4, with full access to computer resources. Starting an XBAP from an HTML page or vice versa is seamless (there is no security or installation prompt). Although one gets the perception of the application running in the browser, it actually runs in an out-of-process executable different from the browser.

### Internet Explorer

As of the release of .NET Framework 3.0, XBAPs would only run in IE.

### Firefox support

With the release of .NET Framework 3.5 SP1, XBAP also runs in Mozilla Firefox using the included extension. On October 16, 2009, Mozilla added the Firefox plugin and extension to its add-ons blocklist, because of a remotely exploitable serious security vulnerability, in agreement with Microsoft.[32] Two days later, the block was removed. On Windows 7, the Firefox plugin does not run by default.[33] A reinstallation of the .NET Framework 3.5 SP1 will install the plugin and add support for XBAP applications on Firefox.[34] Alternatively, hard-copying the plugin DLLs from a working Windows XP/Vista installation to the plugin directory of Mozilla Firefox will also reinstate support for XBAP applications.[34] The WPF plugin DLLs reside in the following directories (depending on the Framework version):

3.5 [SP1]
C:\Windows\Microsoft.NET\Framework\v3.5\WPF\NPWPF.dll
4.0
C:\Windows\Microsoft.NET\Framework\WPF\NPWPF.dll

## Microsoft Silverlight

Main page: Software:Microsoft Silverlight

Silverlight (codenamed WPF/E) is a deprecated cross-browser browser plugin which contained WPF-based technology (including XAML)[35] that provided features such as video, vector graphics, and animations to multiple operating systems including Windows 7, Windows Vista, Windows XP, and Mac OS X. Microsoft sanctioned a limited number of third-party developers to work on ports for certain Linux distributions.[36] Specifically, it was provided as an add-on for Mozilla Firefox, Internet Explorer 6 and above, Google Chrome 42 and below and Apple Safari.

## .NET Micro Framework

The .NET Micro Framework includes a GUI object model loosely based on WPF, although without support for XAML.

## References

1. ↑ "v6.0.2". 2022-02-09. https://github.com/dotnet/wpf/releases/tag/v6.0.2.
2. ↑ Nathan, Adam (2006) (in en). Windows Presentation Foundation Unleashed. Pearson Education. ISBN 9780132715621. https://books.google.com/books?id=TSDxCqUBt18C&q=Windows+Presentation+Foundation.
3. ↑ dotnet-bot. "XAML Overview (WPF)". http://msdn.microsoft.com/en-us/library/ms752059.aspx.
4. ↑ Sells, Chris; Griffiths, Ian (2007) (in en). Programming WPF: Building Windows UI with Windows Presentation Foundation. "O'Reilly Media, Inc.". ISBN 9780596554798. https://books.google.com/books?id=558i6t1dKEAC&q=Windows+Presentation+Foundation.
5. ↑ ".NET". http://msdn.microsoft.com/en-us/netframework/bb188202.aspx.
6. ↑ "Microsoft .NET Framework 3.0 Download". http://www.microsoft.com/downloads/en/details.aspx?FamilyId=10CC340B-F857-4A14-83F5-25634C3BF043&displaylang=en.
7. ↑ Silverlight Learning Resources. Silverlight.net. Retrieved on 2013-08-29.
8. ↑ Martin, Jeff (4 December 2018). "Microsoft Open Sources WPF, WinForms, and WinUI". InfoQ. https://www.infoq.com/news/2018/12/msft-open-source-wpf-winforms.
9. ↑ Hanselman, Scott (4 December 2018). "Announcing WPF, WinForms, and WinUI are going Open Source". https://www.hanselman.com/blog/AnnouncingWPFWinFormsAndWinUIAreGoingOpenSource.aspx.
10. ↑ "Introducing Windows Presentation Foundation". http://msdn.microsoft.com/en-us/library/aa663364.aspx.
11. ↑ 11.0 11.1 "What's New in WPF 3.5? Here's Fifteen Cool Features...". http://blogs.msdn.com/tims/archive/2007/07/27/what-s-new-in-wpf-3-5-here-s-fifteen-cool-features.aspx.
12. ↑ Graphics and Multimedia. Msdn.Microsoft.com. Retrieved on 2013-08-29.
13. ↑ 13.0 13.1 13.2 13.3 "Animation overview". MSDN. http://msdn.microsoft.com/en-us/library/ms752312.aspx.
14. ↑ "Typography in Windows Presentation Foundation". http://msdn.microsoft.com/en-us/library/ms742190(VS.85).aspx.
15. ↑ dotnet-bot. "ClearType Overview". http://msdn.microsoft.com/en-us/library/ms749295.aspx.
16. ↑ "Disable Antialiasing". http://social.msdn.microsoft.com/forums/en-US/wpf/thread/83a5fa3f-dc75-42c8-86df-61e6af6edd41/.
17. ↑ "My first thoughts on WPF with VS 2008 RTM and a few questions". http://social.msdn.microsoft.com/forums/en-US/wpf/thread/07508928-b217-4c76-bf50-edcba545fadf/#page:2.
18. ↑ WPF 4 (VS 2010 and .NET 4.0 Series) - ScottGu's Blog. Weblogs.asp.net. Retrieved on 2013-08-29.
19. ↑ Xansky. "UI Automation Overview". http://msdn.microsoft.com/en-us/library/ms747327.aspx.
20. ↑ MacDonald, Matthew (2010) (in en). Pro WPF in VB 2010: Windows Presentation Foundation in .NET 4. Apress. ISBN 9781430272403. https://books.google.com/books?id=F-gMZkAlUDUC&q=WPF+introduces+eXtensible+Application+Markup+Language&pg=PA23.
21. ↑ 21.0 21.1 21.2 Chris Anderson. "MIL information". http://www.simplegeek.com/PermaLink.aspx/a09c8a32-b4d0-47ce-8186-0c5e7beae66b.
22. ↑ 22.0 22.1 22.2 22.3 22.4 22.5 22.6 "WPF Architecture". MSDN. http://msdn.microsoft.com/en-us/library/ms750441.aspx.
23. ↑ Schechter, Greg (June 9, 2006). "How underlying WPF concepts and technology are being used in the DWM". MSDN Blogs. Microsoft. http://blogs.msdn.com/b/greg_schechter/archive/2006/06/09/623566.aspx.
24. ↑ "Create a WPF application in Visual Studio" (in en-us). https://docs.microsoft.com/en-us/dotnet/framework/wpf/getting-started/walkthrough-my-first-wpf-desktop-application.
25. ↑ "WPF Architecture" (in en-us). https://docs.microsoft.com/en-us/dotnet/framework/wpf/advanced/wpf-architecture.
26. ↑ 26.0 26.1 "Threading Model". MSDN. http://msdn.microsoft.com/en-us/library/ms741870.aspx.
27. ↑ "The Layout System". MSDN. http://msdn.microsoft.com/en-us/library/ms745058.aspx.
28. ↑ Retrieved from http://www.microsoft.com/en-au/download/details.aspx?id=23072.
29. ↑ Wille, Christoph. "SharpDevelop @ic#code". http://icsharpcode.net/OpenSource/SD.
30. ↑ Rich Application Development Tool/Declarative Programming Environment | PowerBuilder - Sybase Inc. Sybase.com. Retrieved on 2013-08-29.
31. ↑ "WPF controls for your modern Desktop Apps" (in en). https://www.syncfusion.com/wpf-ui-controls.
32. ↑ "NET Framework Assistant Blocked to Disarm Security Vulnerability". http://blog.mozilla.com/security/2009/10/16/net-framework-assistant-blocked-to-disarm-security-vulnerability/.
33. ↑ "Firefox Add-ons to Support .NET Application Deployment". http://msdn.microsoft.com/en-us/library/cc716877.aspx.
34. ↑ 34.0 34.1 "Xbap plugin for firefox in Windows 7". http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/747c6b78-a821-4498-a37f-1b79197de803.
35. ↑ "The Official Microsoft ASP.NET Site". http://msdn.microsoft.com/en-us/asp.net/bb187358.aspx.
36. ↑ "Silverlight 1.0 Released and Silverlight for Linux Announced". http://weblogs.asp.net/scottgu/archive/2007/09/04/silverlight-1-0-released-and-silverlight-for-linux-announced.aspx.

## Bibliography

* Adam Nathan: Windows Presentation Foundation Unleashed (WPF), December 21, 2006, Sams Publishing, ISBN:0-672-32891-7
* Chris Anderson: Essential Windows Presentation Foundation (WPF), April 11, 2007, Addison-Wesley, ISBN:0-321-37447-9
* Chris Sells, Ian Griffiths: Programming WPF, August 28, 2007, O'Reilly Media, ISBN:0-596-51037-3
* Arlen Feldman, Maxx Daymon: WPF in Action with Visual Studio 2008, November 21, 2008, Manning Publications, ISBN:1-933988-22-3

## External links

* MSDN Library: Windows Presentation Foundation
* Rich typography with Windows Presentation Foundation
* Windows Presentation Foundation User Education

* v
* t
* e

Microsoft APIs and frameworks

Graphics|

* Desktop Window Manager
* Direct2D
* Direct3D
* D3D (extensions)
* GDI / GDI+
* WPF
* Silverlight
* WinRT XAML
* Windows Color System
* Windows Image Acquisition
* Windows Imaging Component
* DirectX Graphics Infrastructure (DXGI)
* Windows Advanced Rasterization Platform
* WinG

Audio|

* DirectMusic
* DirectSound
* DirectX plugin
* XACT
* Speech API
* XAudio2

Multimedia|

* DirectX
* Media Objects
* Video Acceleration
* Xinput
* DirectInput
* DirectShow
* Image Mastering API
* Managed DirectX
* Media Foundation
* XNA
* Windows Media
* Video for Windows

Web|

* MSHTML
* RSS Platform
* JScript
* VBScript
* BHO
* XDR
* SideBar Gadgets
* TypeScript

Data access|

* Data Access Components (MDAC)
* ADO
* ADO.NET
* ODBC
* OLE DB
* Extensible Storage Engine
* Entity Framework
* Sync Framework
* Jet Engine
* MSXML
* OPC

Networking|

* Winsock
* LSP
* Winsock Kernel
* Filtering Platform
* NDIS
* Windows Rally
* BITS
* P2P API
* MSMQ
* MS MPI
* DirectPlay

Communication|

* Messaging API
* Telephony API
* WCF

Administration and
management|

* Win32 console
* Windows Script Host
* WMI (extensions)
* PowerShell
* Task Scheduler
* Offline Files
* Shadow Copy
* Windows Installer
* Error Reporting
* Event Log
* Common Log File System

Component model|

* COM
* COM+
* ActiveX
* Distributed Component Object Model
* .NET Framework

Libraries|

* Framework Class Library
* Microsoft Foundation Classes (MFC)
* Active Template Library (ATL)
* Windows Template Library (WTL)

Device drivers|

* WDM
* WDF
* KMDF
* UMDF
* WDDM
* NDIS
* UAA
* BDA
* VxD

Security|

* Crypto API
* CAPICOM
* Windows CardSpace
* Data Protection API
* Security Support Provider Interface (SSPI)

.NET|

* ASP.NET
* ADO.NET
* Remoting
* Silverlight
* TPL
* WCF
* WCS
* WPF
* WF

Software factories|

* EFx Factory
* Enterprise Library
* Composite UI
* CCF
* CSF

IPC|

* MSRPC
* Dynamic Data Exchange (DDE)
* Remoting
* WCF

Accessibility|

* Active Accessibility
* UI Automation

Text and multilingual
support|

* DirectWrite
* Text Services Framework
* Text Object Model
* Input method editor
* Language Interface Pack
* Multilingual User Interface
* Uniscribe

* v
* t
* e

Microsoft free and open-source software (FOSS)

Overview|

* Microsoft and open source
* Shared Source Initiative

Software|

| Applications|

* Atom
* Conference XP
* File Manager
* Open Live Writer
* PowerToys for Windows 10
* Windows Calculator
* Windows Console
* Windows Terminal
* WorldWide Telescope
* XML Notepad

|

Video games|

* Allegiance

Programming languages|

* Bosque
* C#
* Dafny
* F#
* F*
* IronPython
* IronRuby
* P
* PowerShell
* Q#
* R Open
* Small Basic
* TypeScript
* Visual Basic .NET

Frameworks and
development tools|

* .NET Bio
* .NET Core
* .NET Framework
* .NET Micro Framework
* AirSim
* ASP.NET
* ASP.NET AJAX
* ASP.NET Core
* ASP.NET MVC
* ASP.NET Razor
* ASP.NET Web Forms
* Blazor
* C++/WinRT
* ChakraCore
* CLR Profiler
* DiskSpd
* Dryad
* Electron
* Entity Framework
* Managed Extensibility Framework
* Microsoft Automatic Graph Layout
* Microsoft Cognitive Toolkit
* Microsoft Detours
* ML.NET
* Mono
* MonoDevelop
* MSBuild
* NuGet
* Open Management Infrastructure
* Orleans
* ProcDump
* R Tools for Visual Studio
* Roslyn
* Sandcastle
* SignalR
* StyleCop
* SVNBridge
* T2 Temporal Prover
* Text Template Transformation Toolkit
* vcpkg
* Virtual File System for Git
* Visual Studio Code
* Windows Communication Foundation
* Windows Driver Frameworks
* Windows Forms
* Windows Presentation Foundation
* Windows Template Library
* WinJS
* WiX
* Z3 Theorem Prover

Operating systems|

* MS-DOS
* Barrelfish

Licenses|

* Microsoft Public License
* Microsoft Reciprocal License

Related|

* .NET Foundation
* F Sharp Software Foundation
* Microsoft Open Specification Promise
* Outercurve Foundation

Category

* v
* t
* e

List of widget toolkits

Low-level|

| On AmigaOS|

* Intuition

|

On Classic Mac OS,
macOS|

| Unknown, native|

* Macintosh Toolbox

|

* Carbon

On Windows|

* Windows API

On Unix,
under X11|

* Xlib
* XCB
* X Toolkit Intrinsics, Xt, X-Toolkit

On BeOS, Haiku|

* BeOS, ZETA, Haiku

On cross-platform|

| CLI|

* OpenTK

|

* GDK
* SDL

Java|

* JOGL

On Android|

| CLI|

* Xamarin.Android

|

High-level|

| On AmigaOS|

* BOOPSI
* MUI
* ReAction GUI
* Zune

|

On Classic Mac OS,
macOS|

| Object Pascal|

* MacApp (v1, v2)

|

Objective-C,
Swift|

| Desktop|

* Cocoa

|

Mobile|

* Cocoa Touch

C++|

* MacApp (v3)
* PowerPlant
* THINK Class Library

CLI|

| Desktop|

* Xamarin.Mac

|

Mobile|

* Xamarin.iOS

On Windows|

| CLI|

| Desktop|

* Windows Forms
* XAML (Silverlight, WinRT XAML, WPF)
* XNA Framework

|

Web|

* XAML (Silverlight)

Mobile|

* XNA Framework

C++|

* MFC
* ATL
* WTL
* OWL

Object Pascal|

* VCL

On Unix,
under X11|

* Athena (Xaw)
* LessTif
* Motif
* OLIT
* XForms

On Android|

| C++|

* Qt for Android

|

Cross-platform,
by language|

| C|

* GTK
* IUP
* Tk
* wxC
* XForms
* XVT

|

C++|

* CEGUI
* CLX
* FLTK
* FOX toolkit
* GLUI
* Gtkmm
* JUCE
* Nana
* Qt
* Rogue Wave Views
* TnFOX
* Ultimate++
* VCF
* Wt
* wxWidgets
* YAAF
* SFML

Objective-C|

* GNUstep

CLI|

| Desktop|

* Gtk#
* Tao (OpenTK, TaoClassic)
* wx.NET
* UIML.NET
* MonoGame

|

Web|

* Moonlight

Mobile|

* MonoGame
* Xamarin.Forms

* DFL
* DlangUI
* DWT
* GtkD
* QtD
* wxD

Flash|

* Apache Flex (MXML)

Haskell|

* Gtk2Hs
* wxHaskell

Java|

| Desktop|

* AWT
* FXML (JavaFX)
* Qt Jambi
* Swing
* SWT
* wx4j
* jUIML

|

Web|

* GWT
* FXML (JavaFX)

Mobile|

* LWUIT

JavaScript|

* Dojo Toolkit
* Echo
* Ext JS
* Google Closure
* jQuery UI
* Qooxdoo
* YUI

Common Lisp|

* CAPI
* CLIM
* Common Graphics
* Ltk
* McCLIM

Lua|

* IUP
* wxLua

Pascal|

| Desktop|

* LCL

|

Mobile|

* LCL

Object Pascal|

| Desktop|

* CLX
* fpGUI
* IP Pascal
* LCL

|

Mobile|

* LCL

Perl|

* Perl/Tk
* wxPerl

PHP|

* PHP-GTK
* PHP-Qt
* wxPHP

Python|

* PyGObject
* PyGTK
* Pyjs
* PyQt
* PySide
* Tkinter
* wxPython

Ruby|

* Shoes
* FXRuby
* Ruby-GNOME2
* qtbindings
* QtRuby
* wxRuby

Tcl|

* Tcl/Tk

XML|

* GladeXML
* Lively Kernel
* Pyjs
* Rialto Toolkit
* XAML
* XUL
* UXP
* Wt

shell|

* whiptail
* dialog

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Original source: https://en.wikipedia.org/wiki/Windows Presentation Foundation. Read more

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