Function SocketFD_ISSET() Professional
Checks if a socket belongs to a descriptor set.
SocketFD_ISSET( <nSocket>, <nFDSet> ) --> lISSET
The function returns .T. (true) if the socket is a member of the descriptor set, otherwise .F. (false) is returned.
If you see anything in the documentation that is not correct, does not match your experience with the particular feature or requires further clarification, please use this form to report a documentation issue.