(Lianja) Bind and Listen on a Randomly Selected Unused Port

Demonstrates how to bind and listen on a randomly selected unused port.

Note:The ListenPort property used in this example is available starting in Chilkat v9.5.0.59.

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// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loListenSocket = createobject("CkSocket")

// Pass a value of 0 for the port number to randomly select
// an unused port.
// (The 2nd argument allows for a backlog of 25 pending connection requests when accepting connections.)
llSuccess = loListenSocket.BindAndListen(5555,25)
if (llSuccess <> .T.) then
    ? loListenSocket.LastErrorText
    release loListenSocket
    return
endif

// Find out what port was chosen.
// Note: The ListenPort propety was added in Chilkat v9.5.0.59
lnListenPort = loListenSocket.ListenPort
? "Chosen listen port = " + str(lnListenPort)


release loListenSocket