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Compound Document Interfaces

The following tables list the interfaces implemented by OLE containers, OLE servers, and compound document objects. The required interfaces must be implemented on the components for which they are listed. All other features are optional. If you want to include a particular feature in your application, however, you must implement the interfaces shown for that feature in the table below. All other interfaces are required only if you are including a particular feature.

The following table lists required and optional behaviors for OLE containers and which interfaces you must implement for each.

Behavior Interfaces

Required behaviors

IOleClientSite

IAdviseSink

Message filtering

IMessageFilter

Linking

none

Linking to embedded objects

IOleItemContainer

IPersistFile

IClassFactory

In-place activation

IOleInPlaceSite

IOleInPlaceFrame

IOleInPlaceObject

Drag and drop

IDropSource

IDropTarget

IDataObject

 

The following table lists required and optional behaviors for OLE servers and their compound document objects and which interfaces you must implement for each. The table distinguishes OLE servers and their objects in order to clarify which component implements which interfaces. The table also notes the different requirements of objects provided by out-of-process versus in-process servers.

FeatureOLE ServerObject (Out-of-process)Object (In-process)
Required behaviors

IClassFactory

IOleObject

IDataObject

IPersistStorage

IOleObject

IDataObject

IPersistStorage

IViewObject2

IOleCache2

Message filtering

IMessageFilter

Linking

IOleItemContainer

IPersistFile

IOleLink

IExternalConnection

In-place activation

IOleInPlaceObject

IOleInPlaceActiveObject

IOleInPlaceObject

IOleInPlaceActiveObject

Drag and drop

IDropSource

IDropTarget

IDataObject

 

Related topics

Compound Documents

 

 

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