This is the legacy 4D documentation web site. Documentations are progressively being moved to developer.4d.com
- 4D Language Reference
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- List of constant themes
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4D Environment
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4D Write Pro
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ASCII Codes
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Backup and Restore
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BLOB
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Cache Management
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Colors
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Communications
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Compression
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Data File Maintenance
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Database Engine
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Database Events
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Database Parameters
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DataStore Request Log
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Date Display Formats
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Days and Months
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Design Object Access
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Dictionaries
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Digest Type
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Error Handler
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Euro Currencies
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Events (Modifiers)
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Events (What)
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Export Structure
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Expressions
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Field and Variable Types
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File and Folder
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Find Window
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Font Styles
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Font Type List
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Form Area
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Form Events
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Form Object Types
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Form Objects (Access)
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Form Objects (Properties)
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Form Parameters
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Formulas
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Function Keys
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Graph Parameters
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Hierarchical Lists
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HTTP Client
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Index Type
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Is License Available
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ISO Latin Character Entities
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LDAP
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List Box
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Listbox Footer Calculation
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Log Events
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Mail
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Math
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Menu Item Properties
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Multistyle Text
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Multistyle Text Attributes
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Objects and collections
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Open Form Window
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Open Window
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Pasteboard
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PHP
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Picture Compression
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Picture Display Formats
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Picture Metadata Names
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Picture Metadata Values
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Picture Transformation
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Platform Interface
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Platform Properties
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Print Options
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Process State
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Process Type
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QR Area Properties
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QR Borders
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QR Commands
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QR Document Properties
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QR Operators
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QR Output Destination
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QR Report Types
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QR Rows for Properties
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QR Text Properties
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Queries
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Relations
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Resources Properties
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SCREEN DEPTH
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SET RGB COLORS
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Shortcut and Associated Keys
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SQL
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Standard Action
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Standard System Signatures
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Strings
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System Documents
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System Folder
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System Format
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TCP Port Numbers
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Time Display Formats
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Trigger Events
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Value for Associated Standard Action
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Web Area
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Web Server
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Web Services (Client)
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Web Services (Server)
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Windows
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XML
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File and Folder
| Constant | Type | Value | Comment |
| fk alias link | Longint | 0 | Alias link (macOS only)(default) |
| fk applications folder | Longint | 116 | |
| fk data folder | Longint | 9 | Associated filesystem: "/DATA" |
| fk database folder | Longint | 4 | Associated filesystem: "/PACKAGE" |
| fk desktop folder | Longint | 115 | |
| fk documents folder | Longint | 117 | Document folder of the user |
| fk home folder | Longint | 118 | Current home folder of the user (usually "/Users/<username>/") |
| fk ignore invisible | Longint | 8 | Invisible files or folders are not listed |
| fk licenses folder | Longint | 1 | Folder containing the machine's 4D license files |
| fk logs folder | Longint | 7 | Associated filesystem: "/LOGS" |
| fk mobileApps folder | Longint | 10 | Associated filesystem: "/DATA" |
| fk overwrite | Longint | 4 | Overwrite existing elements, if any |
| fk platform path | Longint | 1 | Path expressed with a platform-specific syntax (mandatory in case of platform pathname) |
| fk posix path | Longint | 0 | Path expressed with POSIX syntax (default) |
| fk recursive | Longint | 1 | The collection contains files or folders of the specified folder and its subfolders. |
| fk remote database folder | Longint | 3 | 4D database folder created on each 4D remote machine |
| fk resources folder | Longint | 6 | Associated filesystem: "/RESOURCES" |
| fk symbolic link | Longint | 1 | Symbolic link (macOS only) |
| fk system folder | Longint | 100 | |
| fk user preferences folder | Longint | 0 | 4D folder that stores user preference files within the <userName> directory. |
| fk web root folder | Longint | 8 | Current Web root folder of the database: if within the package "/PACKAGE/path", otherwise full path |
Product: 4D
Theme: List of constant themes
Created: 4D v17 R5
4D Language Reference ( 4D v20 R7)
