How do U test the State of a UDP connection?

[TrueCode]

I don't want the client to open if the server is not available. I tried sending a message to the server and trap the send error to select my action. However, I find that the programme goes past the line from which the message is sent before the error trapping routine acts.

So I decided to create an iteration immediately after the send message statement ( i have a separate routine for sending messages which is called in the init()). The iteration should break if the error condition is met, i.e if the error() routine sets a variable to a particular value.

But to my dismay that iteration never breaks, it goes on forever.


I am sure someone had to be faced with this problem, some point in time.

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[agoeddeke]

TrueCode,

The nature of UDP is that it is "connectionless". You simply bind your local port to a server's port and fire away. There is no way to test if the server is listening.

You can read about TCP vs. UDP basics at:

http://msdn.microsoft.com/library/d...y/en-us/mswnsk98/html/vbobjwinsockcontrol.asp

It sounds like you want to create a TCP connection. You truly make a connection using this protocol and you can test to check the state of the connection at any time.

Andy