i 
                                   
                                   
                                   
                          Course Notes for: 
                                   
                     Learn Visual Basic 6 
                                   
                                   
                                   
                                   
                                   
                                   
                          © Lou Tylee, 2000 
                                   
                              KIDware 
                             PO Box 28234 
                           Seattle, WA 98118 
                             (206) 721-2556 
                           FAX (508) 464-0455 
                    E-Mail:  support@kidwaresoftware.com 
                     Web Site:  www.kidwaresoftware.com 
                                   
                                   
                                   
                                   
                                   
                                   
                                   
                                   
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        ii Learn Visual Basic 6 
               
               
               
               
               
               
                         Notice 
               
              These notes were developed for the course, “Learn 
              Visual Basic 6”  They are not intended to be a 
              complete reference to Visual Basic.  Consult the 
              Microsoft Visual Basic Programmer’s Guide and 
              Microsoft Visual Basic Language Reference 
              Manual for detailed reference information. 
               
              The notes refer to several software and hardware 
              products by their trade names.  These references are 
              for informational purposes only and all trademarks are 
              the property of their respective companies. 
               
               Lou Tylee 
               Course Instructor 
               
                    ã KIDware (206) 721-2556 
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                                                         Contents iii 
                                  
                                        Learn Visual Basic 6 
                                                                 
                                                         Contents 
                                                                 
                                                                 
                  1.    Introduction to the Visual Basic Environment 
                   
                   Preview.....................................................................................................1-1 
                   Course Objectives.....................................................................................1-2 
                   What is Visual Basic?................................................................................1-2 
                   Visual Basic 6 versus Other Versions of Visual Basic...............................1-4 
                   Structure of a Visual Basic Application......................................................1-5 
                   Steps in Developing Application................................................................1-6 
                   Drawing the User Interface and Setting Properties...................................1-7 
                   Example 1-1: Stopwatch Application - Drawing Controls........................1-11 
                   Setting Properties of Objects at Design Time.........................................1-12 
                   Setting Properties at Run Time...............................................................1-13 
                   How Names Are Used in Object Events..................................................1-13 
                   Example 1-2: Stopwatch Application - Setting Properties.......................1-14 
                   Writing Code...........................................................................................1-16 
                   Variables.................................................................................................1-17 
                   Visual Basic Data Types.........................................................................1-17 
                   Variable Declaration................................................................................1-17 
                   Example 1-3: Stopwatch Application - Attaching Code...........................1-21 
                   Quick Primer on Saving Visual Basic Applications..................................1-24 
                   Class Review...........................................................................................1-25 
                   Practice Problems 1................................................................................1-26 
                   Problem 1-1. Beep Problem 
                   Problem 1-2. Caption Problem 
                   Problem 1-3. Enabled Problem 
                   Problem 1-4. Date Problem 
                   Exercise 1: Calendar/Time Display.........................................................1-27 
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        iv Learn Visual Basic 6 
        2. The Visual Basic Language 
           
         Review and Preview..................................................................................2-1 
         A Brief History of Basic.............................................................................2-2 
         Visual Basic Statements and Expressions................................................2-3 
         Visual Basic Operators..............................................................................2-4 
         Visual Basic Functions..............................................................................2-5 
         String Functions........................................................................................2-6 
         Rnd (Random Number) Function..............................................................2-9 
         Example 2-1: Savings Account...............................................................2-10 
         Visual Basic Symbolic Constants............................................................2-14 
         Defining Your Own Constants.................................................................2-14 
         Visual Basic Branching - If Statements...................................................2-15 
         Key Trapping...........................................................................................2-16 
         Example 2-2: Savings Account - Key Trapping.......................................2-18 
         Select Case - Another Way to Branch....................................................2-20 
         The GoTo Statement...............................................................................2-21 
         Visual Basic Looping...............................................................................2-21 
         Visual Basic Counting.............................................................................2-23 
         Example 2-3: Savings Account - Decisions.............................................2-24 
         Class Review...........................................................................................2-27 
         Practice Problems 2................................................................................2-28 
         Problem 2-1. Random Number Problem 
         Problem 2-2. Price Problem 
         Problem 2-3. Odd Integers Problem 
         Problem 2-4. Pennies Problem 
         Problem 2-5. Code Problem 
         Exercise 2-1: Computing a Mean and Standard Deviation......................2-29 
         Exercise 2-2: Flash Card Addition Problems...........................................2-30 
         
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