Visual Basic lets you test the state of the Shift, Alt and Ctrl keys only within the KeyUp, KeyDown and all the mouse-related event procedures. If you want to test
The Timer function returns a value which is only accurate to about 55 milliseconds, therefore it is not very useful for doing accurate benchmarks. If you need a better resolution
Visual Basic’s documentation does not explain how to specify more than just one conditional compilation constant in the Advanced tab of the Options dialog. The correct way is using a
Visual Basic supports Property procedures to implement properties in your own CLS and FRM modules. However, it turns out that you can use Property procedures even within BAS code modules.
While Visual Basic offers the Hex$ function that converts a decimal value into its hexadecimal equivalent number, it seems that the inverse function is missing. Not true. Try out this
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
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
Using “pure” VB, the only way to build a generic routine that returns the number of dimensions of an array passed as an argument is using a loop that repeatedly
Private Declare Function GetSystemDirectory Lib “kernel32” Alias _ “GetSystemDirectoryA” (ByVal lpBuffer As String, _ ByVal nSize As Long) As Long ‘ The path of the System directoryFunction SystemDirectory() As String