• Creating VB Add-In

      This article will step you though the process of a creating an add-in for Visual Basic. Add-ins are useful as they allow you to automate common tasks so instead of typing heaps of code you can get the basis of what you need done with a click of the mouse. They can also be used to perform such tasks as code indenting and moving controls on a form.
      The Add-in we will be creating will allow a form or selected controls on a form to scaled by a given percentage. This will demonstrate how to access controls on a form and get and set their properties.
The code for this add-in was written for Visual Basic 5.0.

 

• Using IE 4 as a User Interface

      HTML is becoming a standard interface, as many users are familiar with web browsers it makes sense to model your are applications around this interface.
      In this tutorial you will learn how to respond to the web browser control's events. The program we will create, will display a message box box when you click on the icons (configuration or search).

• Stack data structure

      A stack is a data structure where you can only access the item at the top. With a computer stack just like a stack of dishes you add items to the top and remove them from the top. This behavior is know as LIFO (Last In First Out).
      A stack can be implemented in Visual Basic using references to objects or using an array. The array option is the easiest to implemented in VB and because we can dynamically resize an array in Visual Basic the stack can still grow and shrink.
      The stack below is implemented in a class called "clsStack".

• Heap data structure

      In VB references to object can be used to link the nodes of a heap or an array can be used. Arrays where used in this implementation because they can be dynamically resized in Visual Basic giving the main advantage of the reference option with a lower memory overhead because references don't need to be kept.

• Sending mail using SMTP

      In this tutorial you will learn how to send mail using the standard Simple Mail Transport Protocol with out using any 3rd party DLLs or OCXs.

• Capturing the Output of a shelled program

      Redirecting the standard output and standard error
      Capturing the output of a shell application can be useful, you could use it to create a better ms dos window or create a development environment that runs the compiler and returns any error messages.
      DOS applications send their output to the standard output pipe and error messages to the standard error pipe. Usually these pipes are directed to the screen so the user can see what's happening.
      In order to capture the output of a shell dos application our application must redirect the stdOutput and stdErr pipes from the screen to a pipe that we create.
      The function shown below will execute the application specified and return it's output.