ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Parameters of a procedure/function
You have the ability to pass parameters to a procedure.
Declaring a procedure/a function
The different syntaxes for declaring a procedure...
Calling a procedure/a function
Syntax for calling a local or global procedure.
Procedure/Function
A procedure is used to associate an identifier with a statement block...
Global procedure/function
A global procedure can be used in all the processes or events of the project.
Parameters of a procedure with a variable number of parameters
When the procedure uses a variable number of parameters, you must be able to handle the different parameters passed to the function in the code of the procedure.
Prototype overload/Overload
The procedures and the methods of classes can have several syntaxes.
Passing parameters
The parameters can be passed to a procedure...
MyParameters (Reserved word)
The MyParameters keyword is used to handle the parameters passed to a WLanguage procedure...
Local procedure
Two types of procedures are available...
Typecasting of parameters
The description of the parameter type is optional...
<EmailPOP3Session variable>.GetAll (Function)
Retrieves all the emails found on a POP3 server.
Functions for managing Google documents (prefix syntax)
List of functions for managing Google documents...
Functions for managing parallel tasks (prefix syntax)
The following functions are used to manage parallel tasks...
Constants used by the functions for managing countries and continents
<emailPOP3Session variable>.CloseSession (Function)
Closes a POP3 session.
<Polygon2D variable>.Cover (Function)
Determines if geometry A (of type 2D polygon) covers geometry B.
<emailPOP3Session variable>.StartSession (Function)
Starts a POP3 session.
<Polygon2D variable>.Perimeter (Function)
Calculates the perimeter of a polygon defined using 2D coordinates.
<Linestring2D variable>.AddPoint (Function)
Adds a new point to a 2D linestring.
<Polygon2D variable>.IsValid (Function)
Checks whether the specified 2D polygon is valid according to the OGC rules.
Image catalog
As soon as an image can be used (in a control, in a window, in a report, ......
SQL : ORDER BY clause: Organizing the result of a query
The ORDER BY clause is used to sort the records selected by an SQL query......
Functions for managing TreeView Table controls (prefix syntax)
List of functions for managing TreeView Table controls...
Functions for managing queues, stacks and lists (prefix syntax)
List of functions for managing the queues, the stacks and the lists...
End-user UI editing functions (prefix syntax)
Functions for handling commands in console mode (prefix syntax)
Functions for handling commands in console mode....
Constants used by the functions for managing Dockable Panel controls
Report viewer: "Export" tab
The "Export" pane in the report viewer allows you to perform the following operations......
WDZip: Overview
WDZip is used to compress and group your files in archives......
Assisted HFSQL error handling
WINDEV, WEBDEV and WINDEV Mobile include a module for assisted management of HFSQL errors......
SQL statements
The main SQL statements allowed in the SQL queries managed by WINDEV and WEBDEV are as follows......
The archives
WINDEV, WEBDEV and WINDEV Mobile propose several WLanguage functions allowing you to compress...
Errors while managing data files
When an HFSQL function fails (returns False for example), the corresponding error number...
7. AJAX technology
"Debugger trace" pane
The "Debugger trace" shows the messages displayed in the trace window during the last application...