Checks whether a terminal is attached to another node by a connector. It returns an integer value that specifies whether the specified terminal object is attached to one or more terminals on other message flow nodes.
Use this function to test whether a message can be propagated to a terminal; you do not have to call this function before you propagate a message with the cniPropagate utility function. Use the cniIsTerminalAttached function to modify the node behavior when a terminal is not connected.