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Saturday, June 26, 2010

VB & VBA in a Nutshell: The Language












For Visual Basic and VBA programmers, this book boils down the essentials of the VB and VBA languages into a single volume, including undocumented and little-documented areas essential to everyday programming. The convenient alphabetical reference to all functions, procedures, statements, and keywords allows programmers to use this book both as a standard reference guide and as a tool for troubleshooting and identifying programming problems.

Table of Contents
Preface ..................................................................................................... vii
Part I: The Basics
Chapter 1—Introduction .................................................................... 3
What Is VBA? .......................................................................................... 3
A Brief History of VBA ........................................................................... 6
What Can You Do with VBA? ................................................................ 7
Object Models: The Power of Programming with VBA ....................... 8
Chapter 2—Program Structure ..................................................... 11
Getting a VB Program to Run .............................................................. 12
The Structure of a VB Program ........................................................... 19
Ending Your VB Program .................................................................... 23
Chapter 3—VBA Variables and Data Types ............................. 26
Visual Basic Data Types ....................................................................... 26
Type Conversion .................................................................................. 31
The Variant ........................................................................................... 33
Declaring Variables and Constants ...................................................... 37
Array Variables ..................................................................................... 39
User-Defined Types ............................................................................. 45
Variable Scope and Lifetime ................................................................ 46
Object Variables and Binding .............................................................. 47
Passing Parameters ............................................................................... 50
Intrinsic Constants ................................................................................ 53

Chapter 4—Class Modules ............................................................... 54
Properties .............................................................................................. 55
Enumerated Constants .......................................................................... 62
Class Module Events ............................................................................. 63
Implementing Custom Class Methods ................................................. 68
Creating ActiveX Components ............................................................. 70
Using ActiveX Components in a Project ............................................. 75
Chapter 5—Automation .................................................................. 77
Creating Object Model References ...................................................... 77
Reading the Object Model ................................................................... 79
Working with the Object Model .......................................................... 81
Collection Objects ................................................................................ 83
Trapping an Automation Server’s Events ............................................ 84
Automation Examples .......................................................................... 85
Automation Performance Tips ............................................................. 89
Chapter 6—Error Handling ............................................................ 91
Building a Robust Application ............................................................. 92
Error Handling in Procedures .............................................................. 95
Error Handling in ActiveX Servers ..................................................... 101
Reporting Errors ................................................................................. 104
Part II: Reference
Chapter 7—The Language Reference ........................................ 111
Part III: Appendixes
Appendix A—Language Elements by Category ..................... 583
Appendix B—Language Constants ............................................ 598
Appendix C—Operators .................................................................. 606
Appendix D—What’s New in VB6? ............................................ 613
Index ...................................................................................................... 617

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