IMAPIOffline : IUnknown

Office 2013 and later

Last modified: June 25, 2012

Applies to: Outlook

Provides information for an offline object.

Provided by:

Query on IMAPIOfflineMgr

Called by:


Interface identifier:



Sets the current state of an offline object to online or offline.


Gets the conditions for which callbacks are supported by an offline object.


Gets the current online or offline state of an offline object.

Placeholder member

This member is a placeholder and is not supported.

A client uses HrOpenOfflineObj to open and obtain an offline object that supports IMAPIOfflineMgr. Because IMAPIOfflineMgr inherits from IUnknown, the client can query this interface (by using IUnknown::QueryInterface) to obtain a pointer to the interface pointer for IMAPIOffline for the offline object. The client can then get or set the current state of the object, or find out about the callback capabilities of the object (by calling IMAPIOffline::GetCapabilities) and choose to set up callbacks by using IMAPIOfflineMgr.

A member in this interface is a placeholder reserved for the internal use of Microsoft Outlook 2013 and is subject to change. Other members in this interface must be used only as documented.