* Valid handles returned are usually negative numbers.
* If the syntax is correct but they fail to begin/connect a handle of 0 is returned.
* Always check if the handle returned is 0 (failed) before continuing.
* {{KW|CLOSE}} #{{Parameter|connect_handle}} closes the connection. Failed connections({{Parameter|connect_handle}} = 0) do not need to be closed.
* As a '''Host''' you can check for new clients(users). Each will have a unique connection handle.
* Creates an [[ERROR Codes|ILLEGAL FUNCTION CALL]] error if called with a string argument of the wrong syntax.
* Handle values can be used as the open number by {{KW|INPUT (TCP/IP statement)|INPUT #}} or {{KW|GET (TCP/IP statement)|GET #}} read statements and {{KW|PUT (TCP/IP statement)|PUT #}} or {{KW|PRINT (TCP/IP statement)|PRINT #}} write statements.
{{PageExamples}}
''Example:'' Using the {{KW|_OPENCONNECTION}} new client return with {{KW|INPUT (TCP/IP statement)|INPUT}} # or {{KW|GET (TCP/IP statement)|GET}} # message or data reads.
{{Cl|SLEEP}} 1 ' wait one second for data to arrive
{{Cl|INPUT (TCP/IP statement)|INPUT}} #newclient, a
{{Cl|PRINT}} a
{{Cl|CLOSE}} #newclient ' close after each read
{{Cl|ELSE}} : {{Cl|_DELAY}} .05 ' share resources with other programs (20 loops per second)
{{Cl|END IF}}
{{Cl|LOOP}} {{Cl|UNTIL}} {{Cl|INKEY$}} <> "" ' any keypress quits
{{Cl|CLOSE}} #host
{{Cl|SYSTEM}}
{{CodeEnd}}
''Explanation:'' The function finds new clients and waits one second to read a message or other data. If a message or data was sent, it displays it on the screen and closes the connection.
'''Note: When sending data, the client should wait about 3 seconds before closing their connection!'''