60 Projects With Source Code Exclusive: Visual Basic

A simple port scanner is common, but a responsive one in VB6 is rare because VB6 is single-threaded. This exclusive project uses a controls to scan 20 ports simultaneously without freezing the UI. Core Logic: 'Assume Winsock1 is a control array with Index 0 to 19 Private Sub ScanPort(ByVal IP As String, ByVal StartPort As Integer, ByVal EndPort As Integer) Dim i As Integer Dim CurrentPort As Integer CurrentPort = StartPort For i = 0 To 19 If CurrentPort <= EndPort Then Winsock1(i).RemoteHost = IP Winsock1(i).RemotePort = CurrentPort Winsock1(i).Connect lblStatus.Caption = "Scanning Port: " & CurrentPort CurrentPort = CurrentPort + 1 End If DoEvents 'Keep UI alive Next i End Sub

Private Sub Winsock1_Error(Index As Integer, ByVal Number As Integer, Description As String, ByVal Scode As Long, ByVal Source As String, ByVal HelpFile As String, ByVal HelpContext As Long, CancelDisplay As Boolean) 'Port is closed or filtered - ignore error Winsock1(Index).Close End Sub visual basic 60 projects with source code exclusive

This code uses GetDesktopWindow recursion, which is 10x faster than the standard EnumWindows callback method, making it suitable for real-time spying. Project #2: Hex Editor Lite (Binary Viewer) Difficulty: Advanced Exclusive Concept: Manipulating files at the byte level without crashing. A simple port scanner is common, but a

LoadFileToHex = Output End Function

Public Sub EnumWindowsProc() Dim hwnd As Long Dim RetVal As Long Dim sBuffer As String Dim sClass As String Dim IsVis As Boolean Project #2: Hex Editor Lite (Binary Viewer) Difficulty:

In the fast-paced world of software development, where JavaScript frameworks rise and fall with the seasons, it’s easy to forget the titans that built the industry. Visual Basic 6.0 (VB6) is one such titan. Released in 1998, it remains, even in 2025, one of the most beloved and (controversially) enduring IDEs ever created. Millions of lines of legacy code run Fortune 500 companies, small accounting firms, and industrial control systems.