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Legacy Windows Environment Features

Overview of the Legacy Windows Environment Features technology.

To develop Legacy Windows Environment Features, you need these headers:

For programming guidance for this technology, see:

Enumerations

 
_ColumnSortOrder

Used by IResultsViewer::SortOrderProperty to indicate or set how a query is to be sorted.

Functions

 
AddDesktopItem

Adds a desktop item.
AddDesktopItemWithUI

Adds a desktop item to the Active Desktop after displaying user interfaces that confirm the addition of the desktop item, verifying security zone permissions, and asking if the user wants to create a subscription.
AddUrl

Adds the desktop item associated with the specified URL.
ApplyChanges

Applies changes to the Active Desktop and saves them in the registry.
Deactivate

Notifies the handler that the disk cleanup manager is shutting down.
GenerateDesktopItemHtml

Generates a generic HTML page containing the given desktop item.
GetDesktopItem

Gets the specified desktop item.
GetDesktopItemByID

Gets the desktop item that matches the given identification.
GetDesktopItemBySource

Gets a desktop item using its source URL.
GetDesktopItemCount

Gets a count of the desktop items.
GetDesktopItemOptions

Gets the options for the desktop item.
GetPattern

Gets the current pattern.
GetProgressFeedbackMaxEstimate

Retrieves an estimated measurement of the amount of work required to complete a reconciliation.
GetSpaceUsed

Requests the amount of disk space that the disk cleanup handler can free.
GetWallpaper

Gets the current wallpaper.
GetWallpaperOptions

Gets the wallpaper options.
Initialize

Initializes the disk cleanup handler, based on the information stored under the specified registry key.
InitializeEx

Initializes the disk cleanup handler. It provides better support for localization than Initialize.
ModifyDesktopItem

Modifies the desktop item.
Purge

Notifies the handler to start deleting its unneeded files.
PurgeProgress

Called periodically by a disk cleanup handler to update the disk cleanup manager on the progress of a purge of deletable files.
Reconcile

Reconciles the state of an object with one or more other objects. The reconciliation updates the internal state of the object by merging the states of all objects to form a combined state.
RemoveDesktopItem

Removes the specified desktop item from the desktop.
ScanProgress

Called by a disk cleanup handler to update the disk cleanup manager on the progress of a scan for deletable files.
SetAbortCallback

Sets the object through which the initiator can asynchronously terminate a reconciliation. A briefcase reconciler typically sets this object for reconciliations that are lengthy or involve user interaction.
SetDesktopItemOptions

Sets the item's options.
SetPattern

Sets the Active Desktop pattern.
SetProgressFeedback

Indicates the amount of progress the briefcase reconciler has made toward completing the reconciliation.
SetSafeMode

Sets or updates the Microsoft Active Desktop to safe mode.
SetWallpaper

Sets the wallpaper for the Active Desktop.
SetWallpaperOptions

Sets the wallpaper options.
ShowProperties

Notifies the handler to display its UI.
UpdateAllDesktopSubscriptions

Calls the UpdateAllDesktopSubscriptions function to update desktop subscriptions.
WDEnable

Changes Windows Defender status to on or off.
WDStatus

Returns the current status of Windows Defender.

Interfaces

 
IActiveDesktop

Allows a client program to manage the desktop items and wallpaper on a local computer.
IActiveDesktopP

Exposes methods that manage the Windows Desktop.
IADesktopP2

Provides methods to manage the Windows Desktop.
IEmptyVolumeCache

Used by the disk cleanup manager to communicate with a disk cleanup handler. Exposes methods that enable the manager to request information from a handler, and notify it of events such as the start of a scan or purge.
IEmptyVolumeCache2

Extends IEmptyVolumeCache. This interface defines one additional method, InitializeEx, that provides better localization support than IEmptyVolumeCache::Initialize.
IEmptyVolumeCacheCallBack

Exposes methods that are used by a disk cleanup handler to communicate with the disk cleanup manager.
IReconcilableObject

Exposes methods that reconcile a given document. The briefcase reconciler is responsible for implementing this interface.
IReconcileInitiator

Exposes methods that provide the briefcase reconciler with the means to notify the initiator of its progress, to set a termination object, and to request a given version of a document. The initiator is responsible for implementing this interface.