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...
Constant
The constants are language elements whose value is fixed once and for all...
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.
WLanguage types
The different types in WLanguage are...
Assignment operators
Three assignment operators are available...
<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.
FullTextIndex description (Variable type)
A FullTextIndex description variable is used to describe one or more full-text indexes...
<DiskFile variable>.Read (Function)
Reads: a block of bytes (characters) in an external file (ANSI or Unicode), the content...
<Connection variable>.RSTransformSpareIntoServer (Function)
Transforms a Spare server into an HFSQL server. This makes it possible to delete replications...
<ftpConnection variable>.GetFile (Function)
Transfers a file from an FTP (File Transfer Protocol) server to the current computer. This new...
<htmlNode variable>.ModifyAttribute (Function)
Adds or changes an attribute of the current node of the HTML document.
<picLayer variable>.HorizontalSymmetry (Function)
Flips an image contained in a picLayer variable with respect to a horizontal axis (symmetry...
<Connection variable>.UpdateView (Function)
Creates or updates the description of an SQL view or materialized view from the analysis...
<Scanner variable>.Property (Function)
Used to get and change the characteristics of a scanner.
<zipArchive variable>.DeleteAll (Function)
Deletes all files from an archive.
<Diagram variable>.Load (Function)
Loads a diagram into a Diagram variable from a ".wddiag" file, a memo or a binary buffer.
<fbSession variable>.GetUserInformation (Function)
Gets the Facebook information of the connected user.
<Connection variable>.ListScheduledBackup (Function)
Lists the full and differential backups that have been scheduled on HFSQL Client/Server....
<zipArchive variable>.OpenCAB (Function)
Opens an existing archive in CAB format.
<mongoGridFS variable>.GetFileInfo (Function)
Used to get information about a MongoDB file (gridFS).
Value Description (Type of variable)
A Value Description variable is used to handle the description of an enumeration value...
<btleDescriptor variable>.ReadValue (Function)
Reads the value of a descriptor on a Bluetooth Low Energy device.
<Connection variable>.InfoItemRights (Function)
Gets the rights granted to a user or group on an item.
<EmailOutlookSession variable>.GetAll (Function)
Retrieves all the emails found on an Outlook server.
<Variable Connection>.RSRenameServerName (Function)
Changes the DNS name of the replication server if it has a new name.
Associative array (Variable type)
An associative array is an "advanced" type of array...
<QuickAction variable>.Pin (Function)
Generates a request to pin a quick action.
<upnpDevice variable>.ModifyVolume (Function)
Change the volume of a UPnP device.
<Variable Connexion>.RSIgnoreError (Function)
Ignores errors so that replication between HFSQL servers can continue to run.
Dynamic array (Variable type)
A dynamic array is an "advanced" type of array...
<Document variable>.Seek (Function)
Finds a character string in an entire Document variable.