com topic

COM-based APIs

Windows APIs that use the COM invocation model.

See COM documentation.

Classes

ComCompanion<T extends ComInterface>

Companion metadata for a specific COM interface type T.

ComInterface

Base interface for all COM types that participate in the companion system.

IAccessible

Exposes methods and properties that make a user interface element and its children accessible to client applications.

IAgileObject

Marks an interface as agile across apartments.

IApplicationActivationManager

Provides methods which activate Windows Store apps for the Launch, File, and Protocol extensions.

IAppxBlockMapBlock

Provides a read-only object that represents an individual block within a file contained in the block map file (AppxBlockMap.xml) for the App package.

IAppxBlockMapBlocksEnumerator

Enumerates the blocks from a block map in a single file.

IAppxBlockMapFile

Represents a file in the block map.

IAppxBlockMapFilesEnumerator

Enumerates the files from a block map.

IAppxBlockMapReader

Represents a read-only object model for block maps that provides access to the file attributes and block hashes.

IAppxFactory

Creates objects for reading and writing app packages.

IAppxFile

Retrieves information about a payload or footprint file in a package.

IAppxFilesEnumerator

Enumerates the payload files in a package.

IAppxManifestApplication

Provides access to attribute values of the application.

IAppxManifestApplicationsEnumerator

Enumerates the applications defined in the package manifest.

IAppxManifestCapabilitiesEnumerator

IAppxManifestDeviceCapabilitiesEnumerator

Enumerates the device capabilities defined in the package manifest.

IAppxManifestDriverConstraint

IAppxManifestDriverConstraintsEnumerator

IAppxManifestDriverDependenciesEnumerator

IAppxManifestDriverDependency

IAppxManifestHostRuntimeDependenciesEnumerator

IAppxManifestHostRuntimeDependency

IAppxManifestHostRuntimeDependency2

IAppxManifestMainPackageDependenciesEnumerator

Enumerates <MainPackageDependency> elements from an app manifest.

IAppxManifestMainPackageDependency

Provides access to attribute values of the main package dependency.

IAppxManifestOptionalPackageInfo

Provides access to attribute values of the optional package information.

IAppxManifestOSPackageDependenciesEnumerator

IAppxManifestOSPackageDependency

IAppxManifestPackageDependenciesEnumerator

Enumerates the package dependencies defined in the package manifest.

IAppxManifestPackageDependency

Describes the dependency of one package on another package.

IAppxManifestPackageId

Provides access to the package identity.

IAppxManifestProperties

Provides read-only access to the properties section of a package manifest.

IAppxManifestQualifiedResource

IAppxManifestQualifiedResourcesEnumerator

IAppxManifestReader

Represents an object model of the package manifest that provides methods to access manifest elements and attributes.

IAppxManifestReader2

Represents an object model of the package manifest that provides methods to access manifest elements and attributes.

IAppxManifestReader3

Represents an object model of the package manifest that provides methods to access manifest elements and attributes.

IAppxManifestReader4

Represents an object model of the package manifest that provides methods to access manifest elements and attributes.

IAppxManifestReader5

Represents an object model of the package manifest that provides methods to access manifest elements and attributes.

IAppxManifestReader6

Represents an object model of the package manifest that provides methods to access manifest elements and attributes.

IAppxManifestReader7

IAppxManifestResourcesEnumerator

Enumerates the resources defined in the package manifest.

IAppxManifestTargetDeviceFamiliesEnumerator

IAppxManifestTargetDeviceFamily

Retrieves information about the target device family from the AppxManifest.xml.

IAppxPackageReader

Provides a read-only object model for app packages.

IAppxPackageWriter

Provides a write-only object model for app packages.

IAudioCaptureClient

Enables a client to read input data from a capture endpoint buffer.

IAudioClient

Enables a client to create and initialize an audio stream between an audio application and the audio engine (for a shared-mode stream) or the hardware buffer of an audio endpoint device (for an exclusive-mode stream).

IAudioClient2

Derived from the IAudioClient interface, with a set of additional methods that enable a Windows Audio Session API (WASAPI) audio client to do the following: opt in for offloading, query stream properties, and get information from the hardware that handles offloading.

IAudioClient3

Derived from the IAudioClient2 interface, with a set of additional methods that enable a Windows Audio Session API (WASAPI) audio client to query for the audio engine's supported periodicities and current periodicity as well as request initialization of a shared audio stream with a specified periodicity.

IAudioClientDuckingControl

Provides a method, SetDuckingOptionsForCurrentStream, that allows an app to specify that the system shouldn't duck the audio of other streams when the app's audio render stream is active.

IAudioClock

Enables a client to monitor a stream's data rate and the current position in the stream.

IAudioClock2

Used to get the current device position.

IAudioClockAdjustment

Used to adjust the sample rate of a stream.

IAudioRenderClient

Enables a client to write output data to a rendering endpoint buffer.

IAudioSessionControl

Enables a client to configure the control parameters for an audio session and to monitor events in the session.

IAudioSessionControl2

Can be used by a client to get information about the audio session.

IAudioSessionEnumerator

Enumerates audio sessions on an audio device.

IAudioSessionEvents

Provides notifications of session-related events such as changes in the volume level, display name, and session state.

IAudioSessionManager

Enables a client to access the session controls and volume controls for both cross-process and process-specific audio sessions.

IAudioSessionManager2

Enables an application to manage submixes for the audio device.

IAudioSessionNotification

Provides notification when an audio session is created.

IAudioStreamVolume

Enables a client to control and monitor the volume levels for all of the channels in an audio stream.

IAudioVolumeDuckNotification

Used to by the system to send notifications about stream attenuation changes.

IBindCtx

Provides access to a bind context, which is an object that stores information about a particular moniker binding operation.

IChannelAudioVolume

Enables a client to control and monitor the volume levels for all of the channels in the audio session that the stream belongs to.

IClassFactory

Enables a class of objects to be created.

IConnectionPoint

Supports connection points for connectable objects.

IConnectionPointContainer

Supports connection points for connectable objects.

IDesktopWallpaper

Provides methods for managing the desktop wallpaper.

IDispatch

Exposes objects, methods and properties to programming tools and other applications that support Automation.

IEnumConnectionPoints

Enumerates connection points.

IEnumConnections

Enumerates the current connections for a connectable object.

IEnumIDList

Exposes a standard set of methods used to enumerate the pointers to item identifier lists (PIDLs) of the items in a Shell folder.

IEnumMoniker

Enumerates the components of a moniker or the monikers in a table of monikers.

IEnumNetworkConnections

Provides a standard enumerator for network connections.

IEnumNetworks

A standard enumerator for networks.

IEnumResources

Exposes resource enumeration methods.

IEnumShellItems

Exposes enumeration of IShellItem interfaces.

IEnumSpellingError

An enumeration of the spelling errors.

IEnumSpObjectTokens

IEnumSTATSTG

Enumerates an array of STATSTG structures.

IEnumString

Enumerates strings.

IEnumVARIANT

Provides a method for enumerating a collection of variants, including heterogeneous collections of objects and intrinsic types.

IEnumWbemClassObject

Used to enumerate Common Information Model (CIM) objects and is similar to a standard COM enumerator.

IErrorInfo

Provides detailed contextual error information.

IFileDialog

Exposes methods that initialize, show, and get results from the common file dialog.

IFileDialog2

Extends the IFileDialog interface by providing methods that allow the caller to name a specific, restricted location that can be browsed in the common file dialog as well as to specify alternate text to display as a label on the Cancel button.

IFileDialogCustomize

Exposes methods that allow an application to add controls to a common file dialog.

IFileDialogEvents

Exposes methods that allow notification of events within a common file dialog.

IFileIsInUse

Exposes methods that can be called to get information on or close a file that is in use by another application.

IFileOpenDialog

Extends the IFileDialog interface by adding methods specific to the open dialog.

IFileOperationProgressSink

Exposes methods that provide a rich notification system used by callers of IFileOperation to monitor the details of the operations they are performing through that interface.

IFileSaveDialog

Extends the IFileDialog interface by adding methods specific to the save dialog, which include those that provide support for the collection of metadata to be persisted with the file.

IInitializeWithWindow

Exposes a method through which a client can provide an owner window to a Windows Runtime object used in a desktop application.

IInspectable

Provides functionality required for all Windows Runtime classes.

IKnownFolder

Exposes methods that allow an application to retrieve information about a known folder's category, type, GUID, pointer to an item identifier list (PIDL) value, redirection capabilities, and definition.

IKnownFolderManager

Exposes methods that create, enumerate or manage existing known folders.

IMalloc

Allocates, frees, and manages memory.

IMetaDataAssemblyImport

Provides methods to access and examine the contents of an assembly manifest.

IMetaDataDispenser

Provides methods to create a new metadata scope, or open an existing one.

IMetaDataDispenserEx

Extends the IMetaDataDispenser interface to provide the capability to control how the metadata APIs operate on the current metadata scope.

IMetaDataImport

Provides methods for importing and manipulating existing metadata from a portable executable (PE) file or other source, such as a type library or a stand-alone, run-time metadata binary.

IMetaDataImport2

Extends the IMetaDataImport interface to provide the capability of working with generic types.

IMetaDataTables

Provides methods for the storage and retrieval of metadata information in tables.

IMetaDataTables2

Extends IMetaDataTables to include methods for working with metadata streams.

IMMDevice

Encapsulates the generic features of a multimedia device resource.

IMMDeviceCollection

Represents a collection of multimedia device resources.

IMMDeviceEnumerator

Provides methods for enumerating multimedia device resources.

IMMEndpoint

Represents an audio endpoint device.

IMMNotificationClient

Provides notifications when an audio endpoint device is added or removed, when the state or properties of an endpoint device change, or when there is a change in the default role assigned to an endpoint device.

IModalWindow

Exposes a method that represents a modal window.

IMoniker

Enables you to use a moniker object, which contains information that uniquely identifies a COM object.

INetwork

Represents a network on the local machine.

INetworkConnection

Represents a single network connection.

INetworkListManager

Provides a set of methods to perform network list management functions.

INetworkListManagerEvents

INetworkListManagerEvents is a message sink interface that a client implements to get overall machine state related events.

IOptionDescription

Represents the description of a spell checker option.

IPersist

Provides the CLSID of an object that can be stored persistently in the system.

IPersistFile

Enables an object to be loaded from or saved to a disk file, rather than a storage object or stream.

IPersistMemory

Saves and loads objects from a stream.

IPersistStream

Enables the saving and loading of objects that use a simple serial stream for their storage needs.

IPortableDeviceKeyCollection

Holds a collection of PROPERTYKEY values.

IPortableDevicePropVariantCollection

Holds a collection of indexed PROPVARIANT values of the same VARTYPE.

IPortableDeviceValues

Holds a collection of PROPERTYKEY/PROPVARIANT pairs.

IPortableDeviceValuesCollection

Holds a collection of zero-based indexed IPortableDeviceValues interfaces.

IPropertyDescriptionList

Exposes methods that extract information from a collection of property descriptions presented as a list.

IPropertyStore

This interface exposes methods used to enumerate and manipulate property values.

IProvideClassInfo

Provides access to the type information for an object's coclass entry in its type library.

IRawElementProviderSimple

Defines methods and properties that expose simple UI elements.

IRecordInfo

Describes the structure of a particular UDT.

IRestrictedErrorInfo

Represents the details of an error, including restricted error information.

IRunningObjectTable

Manages access to the running object table (ROT), a globally accessible look-up table on each workstation.

ISensor

Represents a sensor.

ISensorCollection

Represents a collection of sensors, such as all the sensors connected to a computer.

ISensorDataReport

Represents a sensor data report.

ISensorEvents

You must implement if you want to receive sensor events.

ISensorManager

Provides methods for discovering and retrieving available sensors and a method to request sensor manager events.

ISensorManagerEvents

For receiving sensor manager events.

ISequentialStream

Supports simplified sequential access to stream objects.

IShellFolder

Exposed by all Shell namespace folder objects, its methods are used to manage folders.

IShellItem

Exposes methods that retrieve information about a Shell item.

IShellItem2

Extends IShellItem with methods that retrieve various property values of the item.

IShellItemArray

Exposes methods that create and manipulate Shell item arrays.

IShellItemFilter

Exposed by a client to specify how to filter the enumeration of a Shell item by a server application.

IShellItemImageFactory

Exposes a method to return either icons or thumbnails for Shell items.

IShellItemResources

Exposes methods to manipulate and query Shell item resources.

IShellLink

Exposes methods that create, modify, and resolve Shell links.

IShellLinkDataList

Exposes methods that allow an application to attach extra data blocks to a Shell link.

IShellLinkDual

IShellService

Exposes one method that declares ownership when a service component implementing a certain interface is shared among multiple clients, such as Windows Internet Explorer and Windows Explorer.

ISimpleAudioVolume

Enables a client to control the master volume level of an audio session.

ISpDataKey

ISpeechAudioFormat

ISpeechBaseStream

Defines properties and methods for manipulating data streams.

ISpeechDataKey

ISpeechObjectToken

ISpeechObjectTokenCategory

ISpeechObjectTokens

Represents a collection of SpObjectToken objects.

ISpeechVoice

ISpeechVoiceStatus

Defines the types of information returned by the SpVoice.Status method.

ISpeechWaveFormatEx

ISpellChecker

Represents a particular spell checker for a particular language.

ISpellChecker2

Represents a particular spell checker for a particular language, with the added ability to remove words from the added words dictionary, or from the ignore list.

ISpellCheckerChangedEventHandler

Allows the caller to create a handler for notifications that the state of the speller has changed.

ISpellCheckerFactory

A factory for instantiating a spell checker (ISpellChecker) as well as providing functionality for determining which languages are supported.

ISpellingError

Provides information about a spelling error.

ISpEventSource

Provides the mechanism to filter and queue events.

ISpNotifyCallback

ISpNotifySink

ISpNotifySource

Provides a mechanism for a notification but no information on the events that caused the notification.

ISpObjectToken

ISpObjectTokenCategory

ISpStreamFormat

ISpVoice

Enables an application to perform text synthesis operations.

IStorage

Supports the creation and management of structured storage objects.

IStream

Lets you read and write data to stream objects.

ISupportErrorInfo

Ensures that error information can be propagated up the call chain correctly.

ITypeComp

Provides a fast way to access information that compilers need when binding to and instantiating structures and interfaces.

ITypeInfo

Used for reading information about objects.

ITypeLib

Represents a type library, the data that describes a set of objects.

IUIAutomation

Exposes methods that enable Microsoft UI Automation client applications to discover, access, and filter UI Automation elements.

IUIAutomation2

Extends the IUIAutomation interface to expose additional methods for controlling Microsoft UI Automation functionality.

IUIAutomation3

Extends the IUIAutomation2 interface to expose additional methods for controlling Microsoft UI Automation functionality.

IUIAutomation4

Extends the IUIAutomation3 interface to expose additional methods for controlling Microsoft UI Automation functionality.

IUIAutomation5

Extends the IUIAutomation4 interface to expose additional methods for controlling Microsoft UI Automation functionality.

IUIAutomation6

Extends the IUIAutomation5 interface to expose additional methods for controlling Microsoft UI Automation functionality.

IUIAutomationActiveTextPositionChangedEventHandler

Exposes a method to handle Microsoft UI Automation events that occur when the active text position changes.

IUIAutomationAndCondition

Exposes properties and methods that Microsoft UI Automation client applications can use to retrieve information about an AND-based property condition.

IUIAutomationAnnotationPattern

Provides access to the properties of an annotation in a document.

IUIAutomationBoolCondition

Represents a condition that can be either TRUE (selects all elements) or FALSE (selects no elements).

IUIAutomationCacheRequest

Exposes properties and methods of a cache request.

IUIAutomationChangesEventHandler

Exposes a method to handle one or more Microsoft UI Automation change events.

IUIAutomationCondition

This is the primary interface for conditions used in filtering when searching for elements in the UI Automation tree.

IUIAutomationCustomNavigationPattern

Exposes a method to support access by a Microsoft UI Automation client to controls that support a custom navigation order.

IUIAutomationDockPattern

Provides access to a control that enables child elements to be arranged horizontally and vertically, relative to each other.

IUIAutomationDragPattern

Provides access to information exposed by a UI Automation provider for an element that can be dragged as part of a drag-and-drop operation.

IUIAutomationDropTargetPattern

Provides access to drag-and-drop information exposed by a Microsoft UI Automation provider for an element that can be the drop target of a drag-and-drop operation.

IUIAutomationElement

Exposes methods and properties for a UI Automation element, which represents a UI item.

IUIAutomationElement2

Extends the IUIAutomationElement interface.

IUIAutomationElement3

Extends the IUIAutomationElement2 interface.

IUIAutomationElement4

Extends the IUIAutomationElement3 interface.

IUIAutomationElement5

Extends the IUIAutomationElement4 interface to provide access to current and cached landmark data.

IUIAutomationElement6

Extends the IUIAutomationElement5 interface to provide access to current and cached full descriptions.

IUIAutomationElement7

Extends the IUIAutomationElement6 interface.

IUIAutomationElement8

Extends the IUIAutomationElement7 interface.

IUIAutomationElement9

Extends the IUIAutomationElement8 interface.

IUIAutomationElementArray

Represents a collection of UI Automation elements.

IUIAutomationEventHandler

Exposes a method to handle Microsoft UI Automation events.

IUIAutomationEventHandlerGroup

Exposes methods for adding one or more events to a collection for bulk registration through the CreateEventHandlerGroup and AddEventHandlerGroup methods defined in IUIAutomation6.

IUIAutomationExpandCollapsePattern

Provides access to a control that can visually expand to display content, and collapse to hide content.

IUIAutomationFocusChangedEventHandler

Exposes a method to handle events that are raised when the keyboard focus moves to another UI Automation element.

IUIAutomationGridItemPattern

Provides access to a child control in a grid-style container that supports the IUIAutomationGridPattern interface.

IUIAutomationGridPattern

Provides access to a control that acts as a container for a collection of child controls that are organized in a two-dimensional logical coordinate system that can be traversed by row and column.

IUIAutomationInvokePattern

Exposes a method that enables a client application to invoke the action of a control (typically a button).

IUIAutomationItemContainerPattern

Exposes a method that retrieves an item from a container, such as a virtual list.

IUIAutomationLegacyIAccessiblePattern

Exposes methods and properties that enable Microsoft UI Automation clients to retrieve UI information from Microsoft Active Accessibility (MSAA) servers.

IUIAutomationMultipleViewPattern

Provides access to a control that can switch between multiple representations of the same information or set of child controls.

IUIAutomationNotCondition

Represents a condition that is the negative of another condition.

IUIAutomationNotificationEventHandler

Exposes a method to handle Microsoft UI Automation notification events.

IUIAutomationObjectModelPattern

Provides access to the underlying object model implemented by a control or application.

IUIAutomationOrCondition

Represents a condition made up of multiple conditions, at least one of which must be true.

IUIAutomationPropertyChangedEventHandler

Exposes a method to handle Microsoft UI Automation events that occur when a property is changed.

IUIAutomationPropertyCondition

Represents a condition based on a property value that is used to find UI Automation elements.

IUIAutomationProxyFactory

Exposes properties and methods of an object that creates a Microsoft UI Automation provider for UI elements that do not have native support for UI Automation.

IUIAutomationProxyFactoryEntry

Represents a proxy factory in the table maintained by Microsoft UI Automation, and exposes properties and methods that can be used by client applications to interact with IUIAutomationProxyFactory objects.

IUIAutomationProxyFactoryMapping

Exposes properties and methods for a table of proxy factories.

IUIAutomationRangeValuePattern

Provides access to a control that presents a range of values.

IUIAutomationScrollItemPattern

Exposes a method that enables an item in a scrollable view to be placed in a visible portion of the view.

IUIAutomationScrollPattern

Provides access to a control that acts as a scrollable container for a collection of child elements.

IUIAutomationSelectionItemPattern

Provides access to the selectable child items of a container control that supports IUIAutomationSelectionPattern.

IUIAutomationSelectionPattern

Provides access to a control that contains selectable child items.

IUIAutomationSelectionPattern2

Extends the IUIAutomationSelectionPattern interface to provide information about selected items.

IUIAutomationSpreadsheetItemPattern

Enables a client application to retrieve information about an item (cell) in a spreadsheet.

IUIAutomationSpreadsheetPattern

Enables a client application to access the items (cells) in a spreadsheet.

IUIAutomationStructureChangedEventHandler

Exposes a method to handle events that occur when the Microsoft UI Automation tree structure is changed.

IUIAutomationStylesPattern

Enables Microsoft UI Automation clients to retrieve the visual styles associated with an element in a document.

IUIAutomationSynchronizedInputPattern

Provides access to the keyboard or mouse input of a control.

IUIAutomationTableItemPattern

Provides access to a child element in a container that supports IUIAutomationTablePattern.

IUIAutomationTablePattern

Provides access to a control that acts as a container for a collection of child elements.

IUIAutomationTextChildPattern

Provides access a text-based control (or an object embedded in text) that is a child or descendant of another text-based control.

IUIAutomationTextEditPattern

Provides access to a control that modifies text, for example a control that performs auto-correction or enables input composition through an Input Method Editor (IME).

IUIAutomationTextEditTextChangedEventHandler

Exposes a method to handle events that occur when Microsoft UI Automation reports a text-changed event from text edit controls.

IUIAutomationTextPattern

Provides access to a control that contains text.

IUIAutomationTextPattern2

Extends the IUIAutomationTextPattern interface.

IUIAutomationTextRange

Provides access to a span of continuous text in a container that supports the IUIAutomationTextPattern interface.

IUIAutomationTextRange2

Extends the IUIAutomationTextRange interface to enable Microsoft UI Automation clients to programmatically invoke context menus.

IUIAutomationTextRange3

Extends the IUIAutomationTextRange2 interface to support faster access to the underlying rich text data on a text range.

IUIAutomationTextRangeArray

Represents a collection of IUIAutomationTextRange objects.

IUIAutomationTogglePattern

Provides access to a control that can cycle through a set of states, and maintain a state after it is set.

IUIAutomationTransformPattern

Provides access to a control that can be moved, resized, or rotated.

IUIAutomationTransformPattern2

Extends the IUIAutomationTransformPattern interface to enable Microsoft UI Automation clients to programmatically access the viewport zooming functionality of a control.

IUIAutomationTreeWalker

Exposes properties and methods that UI Automation client applications use to view and navigate the UI Automation elements on the desktop.

IUIAutomationValuePattern

Provides access to a control that contains a value that does not span a range and that can be represented as a string.

IUIAutomationVirtualizedItemPattern

Represents a virtualized item, which is an item that is represented by a placeholder automation element in the Microsoft UI Automation tree.

IUIAutomationWindowPattern

Provides access to the fundamental functionality of a window.

IUnknown

The foundational COM interface that provides methods for querying other interfaces and managing the lifecycle of a COM object.

IUri

Exposes methods and properties used to parse and build Uniform Resource Identifiers (URIs).

IVirtualDesktopManager

Exposes methods that enable an application to interact with groups of windows that form virtual workspaces.

IWbemCallResult

Used for semisynchronous calls of the IWbemServices interface.

IWbemClassObject

Contains and manipulates both class definitions and class object instances.

IWbemConfigureRefresher

Used by client code to add enumerators, objects, and nested refreshers into a refresher.

IWbemContext

Used to communicate additional context information to providers when submitting IWbemServices calls to WMI.

IWbemHiPerfEnum

Used in refresher operations to provide rapid access to enumerations of instance objects.

IWbemLocator

Use the IWbemLocator interface to obtain the initial namespace pointer to the IWbemServices interface for WMI on a specific host computer.

IWbemObjectAccess

Provides access to the methods and properties of an object.

IWbemObjectSink

Creates a sink interface that can receive all types of notifications within the WMI programming model.

IWbemQualifierSet

Acts as a container for the entire set of named qualifiers for a single property or entire object (a class or instance).

IWbemRefresher

Provides an entry point through which refreshable objects such as enumerators or refresher objects, can be refreshed.

IWbemServices

Used by clients and providers to access WMI services.

IWebAuthenticationCoreManagerInterop

Contains core methods for obtaining tokens from web account providers.

IWinHttpRequest

Provides all of the nonevent methods for Microsoft Windows HTTP Services (WinHTTP).

Properties

isComInitialized → bool

Returns true if the Component Object Model (COM) is initialized on the current thread.

no setter

Functions

createInstance<T extends IUnknown>(GUID clsid) → T

Creates a COM object instance identified by clsid and returns it as the interface specified by T.

Typedefs

VTablePointer = Pointer<Pointer<IntPtr>>

A type alias representing a pointer to the COM v-table.