Sams Teach Yourself Visual Basic 6 in 24 Hours

By Greg Perry

• Table of Contents
  • Copyright
  • About the Author
  • Acknowledgments
  • Introduction
  • Who Should Read This Book
  • What This Book Will Do for You
  • Can This Book Really Teach Visual Basic in 24 Hours?
  • What You Need
  • Files on the Visual Basic Distribution CD-ROM
  • Conventions Used in This Book
  • Enough! Time Is Ticking!
  • Part I: Introducing Visual Basic
  • Hour 1. Visual Basic at Work
  • Hour 2.Analyzing Visual Basic Programs
  • Hour 3.Controls and Properties
  • Hour 4.Examining Labels, Buttons, and Text Boxes
  • Part II: Coding the Details
  • Hour 5.Putting Code into Visual Basic
  • Hour 6.Message and Input Boxes
  • Hour 7.Making Decisions
  • Hour 8.Visual Basic Looping
  • Part III:Putting Code to Work
  • Hour 9.Combining Code and Controls
  • Hour 10.List Boxes and Data Lists
  • Hour 11.Additional Controls
  • Hour 12.Dialog Box Basics
  • Part IV:Programming with Data
  • Hour 13.Modular Programming
    • Structured Programming
    • Calling Procedures and Returning from Them
    • Coding Subroutines
    • Coding Functions
    • Coding Arguments
    • Receiving by Reference and by Value
    • Summary
    • Q&A
    • Workshop
  • Hour 14.Built-In Functions Save Time
  • Hour 15.Visual Basic Database Basics
  • Hour 16.Printing with Visual Basic
  • Part V:Sprucing Up Programs
  • Hour 17.Menus and Visual Basic
  • Hour 18.The Graphic Image Controls
  • Hour 19.Toolbars and More Graphics
  • Hour 20.Writing Correct Applications
  • Part VI:Advancing Visual Basic Applications
  • Hour 21.Visual Basic and ActiveX
  • Hour 22.Object Basics
  • Hour 23.Distributing Your Applications
  • Hour 24.Online Visual Basic
  • Part VII:Appendixes
  • Appendix A.Operator Precedence
  • Appendix B.Answers
  • Appendix C.Using the CD-ROM

Workshop

The quiz questions and exercises are provided for your further understanding. See Appendix B for the answers.

Quiz

1. What are two reasons for writing structured programs?

2. True or false: Structured code is useful for getting to code details as fast as possible.

3. True or false: You can write your own functions.

4. What is wrong with the following subroutine declaration?

   Public Subroutine DoItSub ()
   

5. When is the Call keyword optional in subroutine calling?

6. The following code appears in a form module's general section. Is X a local, module-global, or project-global variable? What about Y? Would your answers be different if this appeared in an external module as opposed to a form module?

   Dim X As Integer
   Public Y As Integer
   

7. What is wrong with the following function declaration?

   Public Function DoCalc(intAge As Integer, strCoNames(45) As String)
   

8. Why does the called procedure need to know the datatypes for passed values?

9. How does one procedure get local data from a calling procedure?

10. Which keyword is optional: ByRef or ByVal?

Exercises

1. Write a general-purpose standard function procedure that accepts a numeric integer argument and returns that argument multiplied by 10.
2. Write a standard subroutine procedure that accepts three single-precision arguments and displays those three values in labels named lblSng1, lblSng2, and lblSng3.

Share This