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)...
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Advanced types
The advanced types of WLanguage are as follows
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
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.
Assignment operators
Three assignment operators are available...
Constant
The constants are language elements whose value is fixed once and for all...
<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.
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.
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
HModifyTask (Function)
Modifies a scheduled task on the HFSQL server defined by the connection.
geoDistance (Function)
Returns the distance between the two locations. This distance is expressed in meters by default.
geoAzimuth (Function)
Returns the direction represented by a location in relation to another one.
<Image>.Straighten (Function)
Transforms an image by applying perspective correction.
CombinationFromValue (Function)
Returns a combination of one or more options known by their associated values.
CombinationFromName (Function)
Returns a combination of one or more options known by their names.
CombinationCheckName (Function)
Checks whether a combination of one of more options known by their names is valid.
inAppListProductInfo (Function)
Retrieves, from the store, information about the "In-App" products associated with the application.
TimelineListEvent (Function)
Returns: the list of events found between two given times in a TimeLine control, all events...
DateTimeValid (Function)
Checks the validity of a date/time between January 01, 0001 at 0 hours 0 minutes 0 seconds 0...
MapGetPosition (Function)
Returns the geographical position of the point located in the center of the map currently displayed...
HRefreshView (Function)
Asks to recalculate the content of a materialized view.
inAppCheckSubscription (Function)
When starting the iOS application, checks whether the In-App subscriptions have been renewed.
DocInsertTableOfContents (Function)
Inserts a table of contents in a Word Processing document.
<Image>.LayerVisible (Function)
Used to make a layer found in a WDPIC image visible or invisible.
Use Facebook authentication (prefix syntax)
Facebook is the world's most popular social network. It is commonly used by companies to reach...
CertificateExtractExtensionValue (Function)
Returns the value of a certificate extension.
DocDeleteTableOfContents (Function)
Deletes a table of contents from a document.
TimeToInteger (Function)
Converts a time to an integer.
TimeDifference (Function)
Calculates the difference between two times in hundredths of a second.
ComponentExecute (Function)
Executes a global procedure present in an external component. This external component is loaded...
<Notification>.Send (Function)
Sends an interactive notification to the system in order to be displayed.
FTPAttribute (Function)
Identifies the attributes of a file located on an FTP server (File Transfer Protocol).
FTPRenameFile (Function)
Renames or moves a file located on an FTP server (File Transfer Protocol).