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Called by the API to notify that the user of the local client has signed out. Scriptable.

HRESULT OnSignout();


The implementer of this event handler will determine what value should be returned.

This event is used to inform an application that the local client is signing out. It is raised when the user has signed out using a Communicator instance or when the local client application has called the IMessenger::Signout method.

This code example demonstrates the best practice for cleaning up memory resources when non-managed COM objects have been instantiated. When the communicator object has been released, any further automation API calls raise a COM exception.

void communicator_OnSignout()
    Console.WriteLine("Local Client has signed out");
    // Release the unmanaged resource.
    communicator = null;


Requires Microsoft DirectX 9.0, C Runtime libraries (msvcm80.dll) on Microsoft Windows© Vista, Microsoft Windows XP Service Pack 1 (SP1) or later, or Microsoft Windows 2000 with Service Pack 4 (SP4). Any Communicator-imposed restrictions apply. .


Requires Microsoft Office Communications Server 2007, AV MCU (for Media Support), Media Relay (for NAT/Firewall traversal) on Microsoft Office Communications Server 2007.


Microsoft Office Communicator 2007 Automation API

IDL file