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.
<Connection variable>.DisconnectClient (Function)
Displays a message on the Client computer(s) and disconnects the application.
<emailIMAPSession variable>.ExecuteCommand (Function)
Sends an IMAP command to the mail server. This new function is available from WINDEV Suite SaaS...
<picLayer variable>.ChangeMode (Function)
Changes the drawing mode used by the drawing functions (dLine, dRectangle, ....).
<websocketClient variable>.Disconnect (Function)
Disconnects a client from a WebSocket server.
<Connection variable>.Priority (Function)
Finds out and modifies the priority of the calling application.
<Tiff variable>.SaveTIFF (Function)
Saves an image in TIFF format into a file or memory.
<WBadminAuth variable>.DeleteApplication (Function)
Deletes an application from a WEBDEV Application Server.
<fbSession variable>.Start (Function)
Used to authenticate and log in to Faceboook.
<EmailOutlookSession variable>.Update (Function)
Updates the messages of MS Exchange according to the email server.
<sfConnection variable>.Add (Function)
Creates a record in a file of a Salesforce database.
<Connection variable>.DeleteFile (Function)
Deletes HFSQL tables (.fic, .ndx, .ftx, .sdx and .mmo files, if any) from the server.
<WDPic variable>.Resize (Function)
Resizes a WDPic image.
<emailIMAPSession variable>.ListFolder (Function)
Returns the list of folders of an IMAP session.
<zipArchive variable>.OpenRAR (Function)
Opens an existing archive in RAR format.
<Connection variable>.AddScheduledOptimization (Function)
Adds an optimization task of HFSQL Client/Server tables....
<Connection variable>.ListTask (Function)
Lists the scheduled tasks of an HFSQL Client/Server server for a given connection....
<Connection variable>.ListGroup (Function)
Returns the list of groups of users defined for a connection.
<upnpDevice variable>.GetBrightness (Function)
Retrieves the brightness of a UPnP device.
<htmlNode variable>.Wrap (Function)
Wraps the specified node in a given node of an HTML document.
<htmlNode variable>.InsertAfter (Function)
Adds a node after the specified node in an HTML document.
<emailOutlookSession variable>.ChangeFolder (Function)
Modifies the current folder in the Outlook messaging software.
<gglConnection variable>.Connect (Function)
Manages authentication on a Google server (via the "OAuth 2.0" authentication mode).
<List variable>.Info (Function)
Retrieves the characteristics of a WLanguage list: element types and number of elements.
<ftpConnection variable>.ListFile (Function)
Lists the directories or files in a directory located on an FTP server and returns the number...
<Connection variable>.NotifListEmailRecipient (Function)
Returns the list of recipients for a notification by email.