Windows.Foundation Namespace

Enables fundamental Windows Runtime functionality, including managing asynchronous operations, accessing property stores, and working with images and Uniform Resource Identifiers (URIs).

Classes

	Name	Description
	PropertyValue	Represents a value in a property store.
	Uri	Parses Uniform Resource Identifiers (URIs).
	WwwFormUrlDecoder	Parses a URL query string.

Interfaces

	Name	Description
	IAsyncAction	Represents an asynchronous action.
	IAsyncActionWithProgress	Represents an asynchronous action that includes progress updates.
	IAsyncInfo	Supports asynchronous actions and operations.
	IAsyncOperation	Represents an asynchronous operation.
	IAsyncOperationWithProgress	Represents an asynchronous operation that includes progress updates.
	IClosable	Defines a method to release allocated resources.
	IGetActivationFactory	Defines the implementation for a type that retrieves activation factories.
	IPropertyValue	Represents a value in a property store. You can’t implement this interface, see Remarks.
	IReference	Enables arbitrary enumerations, structures, and delegate types to be used as a property values.
	IReferenceArray	Enables arbitrary enumerations, structures, and delegate types to be used as an array of property values. You can’t implement this interface, see Remarks.
	IWwwFormUrlDecoderEntry	Represents a name-value pair in a URL query string.

Structures

	Name	Description
	DateTime	Represents an instant in time, typically expressed as a date and time of day.
	EventRegistrationToken	Represents a reference to a delegate that receives change notifications.
	HResult	Represents an error or warning.
	Point	Represents an ordered pair of floating-point x- and y-coordinates that defines a point in a two-dimensional plane.
	Rect	Contains a set of four floating-point numbers that represent the location and size of a rectangle.
	Size	Represents an ordered pair of floating-point numbers that specify a height and width.
	TimeSpan	Represents a time interval.

Delegates

	Name	Description
	AsyncActionCompletedHandler	Represents a method that handles the completed event of an asynchronous action.
	AsyncActionProgressHandler	Represents a method that handles progress update events of an asynchronous action that provides progress updates.
	AsyncActionWithProgressCompletedHandler	Represents a method that handles the completed event of an asynchronous action that provides progress updates.
	AsyncOperationCompletedHandler	Represents a method that handles the completed event of an asynchronous operation.
	AsyncOperationProgressHandler	Represents a method that handles progress update events of an asynchronous operation that provides progress updates.
	AsyncOperationWithProgressCompletedHandler	Represents a method that handles the completed event of an asynchronous operation that provides progress updates.
	EventHandler	Represents a method that handles general events.
	TypedEventHandler	Represents a method that handles general events.

Enumerations

	Name	Description
	AsyncStatus	Specifies the status of an asynchronous operation.
	PropertyType	Specifies property value types.