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Frequently Asked Questions

Testing if you are connected to the internet

Question:

How can I tell at runtime if I am connected to the internet?

Answer:

You can use the TCP component to retrieve the Local IP 

address. If it is "0.0.0.0" then there is no connection.



Example:



procedure TForm1.Button1Click(Sender: TObject);

begin

  if TCP1.LocalIp = '0.0.0.0' then

    ShowMessage('Your not connected!');

end;

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