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| function | TCPServiceIsOpen | ||||
| Related Concepts | Other Library Functions | 
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Library: TCP/IP
 Include: omioprot.xin, omtcp.xin  | 
Returns: Boolean
 Returns true if the TCP service is open, and false otherwise.  | 
  define external switch TCPServiceIsOpen
        value TCPService this-TCPService
  as TCPServiceIsOpen
This function checks whether a TCP service is open, regardless of whether it's just been declared or is in error. It is always valid to call this function.
Argument:
Example
  do unless TCPServiceIsOpen omdemo-service
     output "not open %n"
  done
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