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Bind and Listen on a Randomly Selected Unused Port

See more Socket/SSL/TLS Examples

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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Local $bSuccess = False

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

$oListenSocket = ObjCreate("Chilkat.Socket")

; 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.)
$bSuccess = $oListenSocket.BindAndListen(5555,25)
If ($bSuccess <> True) Then
    ConsoleWrite($oListenSocket.LastErrorText & @CRLF)
    Exit
EndIf

; Find out what port was chosen.
; Note: The ListenPort propety was added in Chilkat v9.5.0.59
Local $iListenPort = $oListenSocket.ListenPort
ConsoleWrite("Chosen listen port = " & $iListenPort & @CRLF)