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Visual Basic 6.0

Bind and Listen for Incoming Connections

See more Socket/SSL/TLS Examples

Demonstrates Socket.BindAndListen, which binds a TCP listener to a port and places it into listening mode, then accepts an incoming connection.

Background. The backlog argument bounds the queue of pending connections. When ClientIpAddress is empty, the listener binds to all interfaces. After listening, call AcceptNext to accept connections.

Chilkat Visual Basic 6.0 Downloads

Visual Basic 6.0
Dim success As Long
success = 0

Dim socket As New ChilkatSocket

'  Bind a TCP listener to a port and place it into listening mode.  The 2nd argument is the backlog,
'  the maximum number of pending connections allowed to queue.
success = socket.BindAndListen(5000,25)
If (success = 0) Then
    Debug.Print socket.LastErrorText
    Exit Sub
End If

'  After the listener is established, accept the next incoming connection into a new Socket.
Dim connectedSock As New ChilkatSocket
success = socket.AcceptNext(20000,connectedSock)
If (success = 0) Then
    Debug.Print socket.LastErrorText
    Exit Sub
End If

Debug.Print "Accepted a connection."