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OBJECTIVES

This lesson will focus on the use of "controls" in Visual Basic - objects such as scroll bars, text boxes, and command buttons - and how to include these controls in your programs, how to change their properties and how to attach code to them. Most programs output information to the user and get information from the user. The process of outputting and inputting information is called the "user interface" aspect of the program. Windows programs use controls for providing easy and pleasant user interface. (That's one reason for the popularity of Windows.) Upon completion of this chapter you will find that using fancy user interface is very easy in VB.

2. Properties and Controls 

1.  A certain statement appears in this book as follows:

    Info = "ABC" + 
             > "DEF" + "GH" +
             > "IJK" 
             > + "L"

    How would you type it inside your Visual Basic Program?
    (a) Info = "ABC" + "DEF" + "GH" + "IJK" + "L"
    (b) Exactly as shown above

2.  Suppose your program includes a vertical scroll bar by the name vsbVolume.  Write a statement that places the thumb of the scroll bar at position 37.

3.  Suppose your program includes a horizontal scroll bar by the name hsbDistance.  How do you change the Min and Max properties of the scroll bar to 10 and 200, respectively?

TEST YOUR PROGRESS

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