By default, textbox controls work in insert mode, where each new character never overwrites existing ones. If you wish to implement overwrite mode you can take advantage of the fact
When you build your ActiveX controls and components, Visual Basic automatically creates all the GUIDs as necessary. The same also happens in other cases, without you even realizing it: for
Many VB programmers assume that Visual Basic 5.0 is not capable of creating stand-alone Type Libraries, because the documentation states that when an ActiveX component or control is created, the
Fixed-length strings are generally slower than conventional strings, because all VB string functions and operators only recognize conventional strings, thus all fixed-length strings must be transparently converted to and from
Private Declare Function GetUserName Lib “advapi32.dll” Alias “GetUserNameA” _ (ByVal lpBuffer As String, nSize As Long) As Long’ The name of the interactive userFunction UserName() As String Dim buffer As
Short-circuit evaluation is an optimization technique automatically adopted by most modern compilers, including all flavors of C++, Borland Delphi and many others. Unfortunately, the Visual Basic compiler is not in
The fastest way to read a text file is using the Input$ function, as shown in this reusable procedure: Function FileText (filename$) As String Dim handle As Integer handle =
Private Declare Function GetWindowsDirectory Lib “kernel32” Alias _ “GetWindowsDirectoryA” (ByVal lpBuffer As String, _ ByVal nSize As Long) As Long’ Return the path of the Windows directoryFunction WindowsDirectory() As String
When you write a procedure and you want to be sure that the procedure does not affect the value of any variable passed to it as an argument in the