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TElDNSClient     See also     

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Specifies if the client is active.


    bool Active;

    Property Active As Boolean

    property Active : boolean;

    bool get_Active();

    bool get_Active()

    boolean getActive();


    If this property value is True, the connection was established, and the client is activated and ready for operation.
    However, if the connection is lost on the socket level, there is no way to find out that the connection has been closed, and Active property can still be True. The only way to check the actual connection state is to send something and get an error if the connection has been closed. This is by design of TCP/IP.
    Your code should always be ready to handle unexpected disconnections and other network errors and reconnect if needed.

See also:     Activate    

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