Visual Basic 60 Projects With Source Code Exclusive ((top)) ❲HD❳
Visual Basic 6.0 (VB6) remains one of the most influential legacy programming environments in software history. Decades after its 1998 release, the language thrives in enterprise systems, industrial automation, and rapid prototyping workflows. The simplicity of its drag-and-drop form designer combined with Event-Driven Programming makes it a valuable teaching tool and a robust engine for desktop applications.
Private MaxClients As Integer Private Sub Form_Load() MaxClients = 0 sckServer(0).LocalPort = 5001 sckServer(0).Listen lstLog.AddItem "Server started on port 5001. Awaiting connections..." End Sub Private Sub sckServer_ConnectionRequest(Index As Integer, ByVal requestID As Long) ' Index 0 remains the dedicated listener instance If Index = 0 Then MaxClients = MaxClients + 1 ' Instantiate a new Winsock object inside the control array Load sckServer(MaxClients) sckServer(MaxClients).LocalPort = 0 sckServer(MaxClients).Accept requestID lstLog.AddItem "Client connected from IP: " & sckServer(MaxClients).RemoteHostIP & " on Socket " & MaxClients BroadcastMessage "SERVER", "A new user has joined the channel." End If End Sub Private Sub sckServer_DataArrival(Index As Integer, ByVal bytesTotal As Long) Dim incomingData As String Dim senderName As String Dim directPayload As String sckServer(Index).GetData incomingData, vbString ' Simple Protocol Parser: Expects data structured as "SENDER_NAME|MESSAGE_BODY" If InStr(incomingData, "|") > 0 Then senderName = Split(incomingData, "|")(0) directPayload = Split(incomingData, "|")(1) lstLog.AddItem "[" & Index & "] " & senderName & ": " & directPayload BroadcastMessage senderName, directPayload End If End Sub Private Sub BroadcastMessage(ByVal Sender As String, ByVal Message As String) Dim i As Integer Dim outboundPayload As String outboundPayload = Sender & ": " & Message ' Iterate safely over array boundaries to forward messages to all connected elements For i = 1 To MaxClients If sckServer(i).State = sckConnected Then sckServer(i).SendData outboundPayload DoEvents ' Yield execution context to prevent freezing standard UI thread End If Next i End Sub Private Sub sckServer_Close(Index As Integer) lstLog.AddItem "Socket " & Index & " disconnected." sckServer(Index).Close Unload sckServer(Index) ' Free allocated memory structures End Sub Use code with caution. visual basic 60 projects with source code exclusive