Connection lost detection with external TCPServer.

[M.Ż.]

Hello,

I am using external scanner with TCPServer. My question is how to detect lost connection with my scanner when e.g. battery drains out?

For connection I am using ConnectToTCPServer and TCPCallback function as callback.

I was thinking about some kind of polling e.g. ping to check if server is available.

How to do in proper way?

BR

M

[Jattie · Accepted solution]

How about pinging the device?

[M.Ż.]

I have found function:

"int InetPing (const char *address, int *available, unsigned int timeout);".

I have already tested, it seems that it is what I was looking for.

[AllenHuffman]

Thanks for this topic -- I think it may be what I am looking for, as well. I am looking at some pre-existing code and it can hang if the remote connection is lost without sending a disconnect (power off, cable unplugged). This seems like a simple way to detect we are still talking.