ONLINE HELP
 WINDEV, WEBDEV AND WINDEV MOBILE

Version: 2026
fUnlock (Function)
Entirely or partially unlocks an external file.
fChangeSize (Function)
Resizes an external file.
fReadLineRegularExpression (Function)
Reads a line in an external file, gets sections of this line according to a regular expression and assigns them to a variable.
fRead (Function)
Reads:
  • a block of bytes (characters) in an external file (ANSI or Unicode),
  • the content of an external file (ANSI or Unicode) and assigns it to a memory area.
<DiskFile variable>.Unlock (Function)
Entirely or partially unlocks an external file.
fWrite (Function)
Writes:
  • a character string to an external file.
  • a memory section.
fReadLine (Function)
Reads a line from an external file (ANSI or Unicode).
fSize (Function)
Returns the size of a file (in bytes).
ComponentLoad (Function)
Loads an external component. This component can be:
  • an external component present in the current project.
  • an external component independent of the current project.
Extern (Reserved word)
EXTERN is used to...
fWriteLine (Function)
Writes a line to a text file (ANSI or Unicode).
<DiskFile variable>.Create (Function)
Creates an external file.
<DiskFile variable>.Size (Function)
Returns the size of a file (in bytes).
YAML (Variable type)
The YAML type simplifies the handling of data in YAML format.
<DiskFile variable>.ReadLineRegularExpression (Function)
Reads a line in an external file, gets sections of this line according to a regular expression and assigns them to a variable.
fDataDir (Function)
Returns the full path of the directory of HFSQL data files specified by the user when installing the application.
fCreate (Function)
Creates an external file.
fOpen (Function)
Opens an external file (ANSI or UNICODE) for programmatic manipulation.
fSeek (Example)
Usage example of the fSeek function
<DiskFile variable>.ChangeSize (Function)
Resizes an external file.
HDeclareExternal (Example)
Usage example of the HDeclareExternal function
<DiskFile variable>.Open (Function)
Opens an external file (ANSI or Unicode) so that it can be manipulated programmatically
<DiskFile variable>.Read (Function)
Reads:
  • a block of bytes (characters) in an external file (ANSI or Unicode),
  • the content of an external file (ANSI or Unicode) and assigns it to a memory area.
ScriptDisplay (Function)
Calls an external script or page (.php, .asp, .mhtml or.mht) and returns the result page in the current browser window.
JSON
JSON (JavaScript Object Notation – Object Notation from JavaScript) is a lightweight data exchange format...
<DiskFile variable>.Write (Function)
Writes:
  • a character string to an external file.
  • a memory section.
<DiskFile variable>.ReadLine (Function)
Reads a line from an external file (ANSI or Unicode).
<DiskFile variable>.WriteLine (Function)
Writes a line to a text file (ANSI or Unicode).
ComponentInfo (Function)
Returns information about a component.
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