PresentationSource Class (System.Windows)

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Microsoft Visual Studio 2010/.NET Framework 4

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.NET Framework Class Library

PresentationSource Class

Provides an abstract base for classes that present content from another technology as part of an interoperation scenario. In addition, this class provides static methods for working with these sources, as well as the basic visual-layer presentation architecture.

Inheritance Hierarchy

System..::.Object
  System.Windows.Threading..::.DispatcherObject
    System.Windows..::.PresentationSource
      System.Windows.Interop..::.HwndSource

Namespace: System.Windows
Assembly: PresentationCore (in PresentationCore.dll)

Syntax

Visual Basic

<UIPermissionAttribute(SecurityAction.InheritanceDemand, Unrestricted := True)> _
Public MustInherit Class PresentationSource _
    Inherits DispatcherObject

[UIPermissionAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)]
public abstract class PresentationSource : DispatcherObject

Visual C++

[UIPermissionAttribute(SecurityAction::InheritanceDemand, Unrestricted = true)]
public ref class PresentationSource abstract : public DispatcherObject

[<AbstractClass>]
[<UIPermissionAttribute(SecurityAction.InheritanceDemand, Unrestricted = true)>]
type PresentationSource =  
    class
        inherit DispatcherObject
    end

The PresentationSource type exposes the following members.

Constructors

	Name	Description
	PresentationSource	Provides initialization for base class values when called by the constructor of a derived class.

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Properties

	Name	Description
	CompositionTarget	Gets the visual target for the visuals being presented in the source.
	CurrentSources	Returns a list of sources.
	Dispatcher	Gets the Dispatcher this DispatcherObject is associated with. (Inherited from DispatcherObject.)
	IsDisposed	When overridden in a derived class, gets a value that declares whether the object is disposed.
	RootVisual	When overridden in a derived class, gets or sets the root visual being presented in the source.

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Methods

	Name	Description
	AddSource	Adds a PresentationSource derived class instance to the list of known presentation sources.
	AddSourceChangedHandler	Adds a handler for the SourceChanged event to the provided element.
	CheckAccess	Determines whether the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject.)
	ClearContentRenderedListeners	Sets the list of listeners for the ContentRendered event to nullNothingnullptra null reference (Nothing in Visual Basic).
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	FromDependencyObject	Returns the source in which a provided DependencyObject is presented.
	FromVisual	Returns the source in which a provided Visual is presented.
	GetCompositionTargetCore	When overridden in a derived class, returns a visual target for the given source.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	RemoveSource	Removes a PresentationSource derived class instance from the list of known presentation sources.
	RemoveSourceChangedHandler	Removes a handler for the SourceChanged event from the provided element.
	RootChanged	Provides notification that the root Visual has changed.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	VerifyAccess	Enforces that the calling thread has access to this DispatcherObject. (Inherited from DispatcherObject.)

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Events

	Name	Description
	ContentRendered	Occurs when content is rendered and ready for user interaction.

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Version Information

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET Framework Security

UIPermission
to derive from this class. Associated enumeration: PermissionState..::.Unrestricted.

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Reference

System.Windows Namespace

HwndSource

Other Resources

WPF and Win32 Interoperation