Xojo Plugin

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.

Xojo Plugin

Dim success As Boolean
success = False

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

Dim listenSocket As New 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.)
success = listenSocket.BindAndListen(5555,25)
If (success <> True) Then
    System.DebugLog(listenSocket.LastErrorText)
    Return
End If

// Find out what port was chosen.
// Note: The ListenPort propety was added in Chilkat v9.5.0.59
Dim listenPort As Int32
listenPort = listenSocket.ListenPort
System.DebugLog("Chosen listen port = " + Str(listenPort))