ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Declaring and using a variable
A variable is defined by name and type...
Service variable
The Service variable is used to...
Report based on a variable (Data binding)
A report based on a variable is used to directly print the information found in a WLanguage variable...
Composite variable
A composite variable contains different types of elements (members)...
Advanced types
The advanced types of WLanguage are as follows
<Source>.Reset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
WLanguage types
The different types in WLanguage are...
IsNumeric (Function)
Enables you to find out whether a variable or a control is:
  • a numeric (integer, real, currency or numeric).
  • a string that can be converted into numeric.
HReset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
Assignment operators
Three assignment operators are available...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Constant
The constants are language elements whose value is fixed once and for all...
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
zipExtractPath (Function)
Returns the path of a file found in the archive.
zipClose (Function)
Closes an archive.
zipInfoFile (Function)
Returns the characteristics of a file found an archive: The name of the file and its stored...
zipOpen (Function)
Opens an existing archive.
zipIsMulti (Function)
Returns the type of archive: single-part archive or multi-part archive.
zipMerge (Function)
Merges the different sub-archives found in a multi-part archive to create a single-part archive.
ComponentLoad (Function)
Loads an external component. This component can be: an external component present...
<Gantt chart>.AddTask (Function)
Adds a task in a Gantt Chart column in a Table or TreeView Table control.
<Kanban list>.DeleteCard (Function)
Deletes a card from a Kanban control or from a Kanban List control.
Certificate functions (prefix syntax)
The following functions are used to handle Windows certificates, using prefix syntax:
App shortcuts
...App shortcuts are an Android feature that allows users to quickly perform specific actions...
HSetPosition (Function)
Sets the position on a record, based on the approximate position of one of its items.
GPSDetectPosition (Function)
Asks to be notified when the device gets close to a given location.
Certificate management functions
The following functions are used to handle the certificates:...
inAppPurchaseProduct (Function)
Sends a request for purchasing an "In-App" product associated with the application.
HTransactionIsolation (Function)
Configures the isolation mode of transactions for a connection to an HFSQL server.
MapDeleteAll (Function)
Deletes the following from a Map control: all markers, all shapes, all images....
HGetCurrentPosition (Function)
Returns the approximate position of current record in the data file.
Bar Code management functions
The following functions are used to manage bar codes:...
GuidedTourStepChange (Function)
Modifies the current step of the guided tour.
<GuidedTour>ChangeStep (Function)
Modifies the current step of the guided tour.
fWriteLine (Function)
Writes a line into a text file (ANSI or UNICODE).
<Chrono>.End (Function)
Stops a stopwatch and returns the time elapsed (in milliseconds) since the start of timing (call...
<Chrono>.Resume (Function)
Resumes a stopwatch previously stopped by <Chrono>.Fin or <Chrono>.Pause.
HCancelBackup (Function)
Cancels a current backup.