This documentation is archived and is not being maintained.

UccSessionParticipantStateChangedEvent Class

This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.

Illustrates the implementation of the session participant state changed event data. The class cannot be co-created.

Namespace: Microsoft.Office.Interop.UccApi
Assembly: Microsoft.Office.Interop.UccApi (in

public abstract class UccSessionParticipantStateChangedEvent
public abstract class UccSessionParticipantStateChangedEvent
public abstract class UccSessionParticipantStateChangedEvent

This class implements the IUccSessionParticipantStateChangedEvent and IUccOperationProgressEvent interfaces. The default interface is IUccSessionParticipantStateChangedEvent. An application obtains the default interface on the class instance directly. Non-default interfaces, if any, can be obtained by calling QueryInterface on the default interface. This class cannot be co-created. It is intended to illustrate that the implemented interfaces can be queried from each other as well as the events raised in an instance of this class.

Win32 COM/C++ Syntax

coclass UccSessionParticipantStateChangedEvent
   [default] interface IUccSessionParticipantStateChangedEvent;
   interface IUccOperationProgressEvent;


All public static (Shared in Visual Basic) members of this type are thread-safe. Instance members are not guaranteed to be thread-safe.

Development Platforms

Windows XP Professional with Service Pack 2 (SP2), Windows Server 2000 with Service Pack 4, Windows Server 2003, Windows Vista Ultimate Edition, Windows Vista Business Edition, Windows Vista Enterprise Edition

Target Platforms