Called whenever a client attempts to connect to a server with a given topic.
win32
dde-server-topic server topic-name => topic
| server⇩ | 
A server. | 
| topic-name⇩ | 
A string. | 
| topic | 
A topic. | 
The generic function dde-server-topic is called whenever a client attempts to make a connection to a server server. The argument topic-name is a string identifying a topic. If the server recognizes the topic, a method specializing on the server should return an instance of one of the server's topic classes. If the server does not recognize the topic, the method should return nil.
LispWorks® User Guide and Reference Manual - 01 Dec 2021 19:31:10