A COM interface pointer that provides the source interface iid.
The iid of the source interface to be disconnected. The iid can be a symbol naming the interface or a refguid foreign pointer.
The integer cookie associated with the connection to be disconnected.
A boolean. When false, errors disconnecting the cookie will cause
nil to be returned. Otherwise an error of type
com-error will be signaled.
Suppose there is an interface pointer
clonable which provides a source interface
i-clonable-events, then the following form can be used to disconnect an implementation of this source interface with cookie
LispWorks COM/Automation User Guide and Reference Manual - 14 Feb 2015