Section B.6. Logical and TriState Constants
B 6 Logical and TriState Constants
In many cases, only the logical constants vbTrue and vbFalse can be used. In other cases, the third constant, vbUseDefault, can be used to indicate a setting that is neither True nor False, or a setting that is defined elsewhere in the system:.
|
Constant |
Value |
Description |
|---|---|---|
|
vbFalse |
0 |
False |
|
vbTrue |
-1 |
True |
|
vbUseDefault |
-2 |
Use the default value defined by the system, or not applicable |
Part I: The Basics
Introduction
- Introduction
- VBScripts History and Uses
- What VBScript Is Used For: Gluing Together Objects
- Differences Between VBScript and VBA
Program Structure
Data Types and Variables
Error Handling and Debugging
VBScript with Active Server Pages
Programming Outlook Forms
- Programming Outlook Forms
- Why Program Outlook Forms?
- The Form-Based Development Environment
- Running Your Code
- Program Flow
- The Outlook Object Model
- Accessing Other Object Models
Windows Script Host 5.6
- Windows Script Host 5.6
- Why Use WSH?
- Program Flow
- The WSH Object Model
- WSH Language Elements
- Accessing Other Object Models
VBScript with Internet Explorer
- VBScript with Internet Explorer
- The SCRIPT Tag
- What Can You Do with Client-Side Scripting?
- Understanding the IE Object Model
Windows Script Components
- Windows Script Components
- The Script Component Wizard
- Writing Component Code
- Using the Component
- WSC Programming Topics
Part II: Reference
Part III: Appendixes
Appendix A. Language Elements by Category
- Appendix A. Language Elements by Category
- Section A.1. Array Handling
- Section A.3. Comment
- Section A.5. Data Type Conversion
- Section A.6. Date and Time
- Section A.7. Dictionary Object
- Section A.8. Error Handling
- Section A.9. File System Objects
- Section A.10. Information Functions
- Section A.11. Mathematical and Numeric
- Section A.12. Miscellaneous
- Section A.13. Object Programming
- Section A.14. Program Structure and Flow
- Section A.15. String Manipulation
- Section A.16. User Interaction
- Section A.17. Variable Declaration
Appendix B. VBScript Constants
- Appendix B. VBScript Constants
- Section B.1. Color Constants
- Section B.2. Comparison Constants
- Section B.3. Date and Time Constants
- Section B.4. Date Format Constants
- Section B.5. Error Constant
- Section B.6. Logical and TriState Constants
- Section B.7. Message Box Constants
- Section B.8. String Constants
- Section B.9. Variable Type Constants
Appendix C. Operators
- Appendix C. Operators
- Section C.1. Arithmetic Operators
- Section C.2. String Operator
- Section C.3. Comparison Operators
- Section C.4. Logical and Bitwise Operators
- Section C.5. Operator Precedence
Appendix E. The Script Encoder
EAN: 2147483647
Pages: 335
