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...
HCross (Function)
Crosses a record in a data file.
HBackward (Function)
Moves backward several records from the current position in the data file, according to a specified...
HForward (Function)
Moves several records forward from the current position in the data file, according to a specified...
Scheduler control: Customize appointments
In the Scheduler control, the appointment is displayed in a specific area......
Native Informix Connector: Specific features and remarks
Remarks and specific features of Native Informix Connector...
Creating a .NET assembly from WINDEV
To create a.NET assembly, ......
Code editor options
A series of options allows you to customize and take full advantage of the code editor......
SQLCol (Function)
Retrieves the content of the specified column from the query result, for the current line.
EmailStartSMTPSession (Function)
Starts a session for sending emails with the SMTP protocol.
In-App purchases
The mobile systems (Android/iOS) allow their applications to propose content at extra cost,...
SQL selection conditions
To specify the selection conditions in an SQL query, you can use......
3. Editing products
WEBDEV Tutorial - Creating a website with back office processes Lesson 3 - Editing products - 50...
Project description: Files tab
The project description window allows you to configure various elements of your project......
Compilation statement: COMPILE IF
The <COMPILE IF> statement allows you to compile (or not) a WLanguage code according...
Docker image of the HFSQL server
From version 22, a Docker container with the HFSQL server is available in Docker Hub......
Opacity (Property)
The Opacity property is used to get and define the opacity percentage for a window, or for controls...
Execute (Function)
Starts the execution of a process through programming.
Diagram Editor control events
WINDEV manages the following events by default (in the order in which they appear in the code...
Code editor: Various operations
The code editor is the editor where the developers spend most of their time. This help page...
The Dashboard control
Dashboards are essential elements in an application......
CallWD: Function specific to the external language
Calls a WLanguage function from an external language....
iPad window: Window creation wizard
The wizard for creating iPad windows allows you to easily create a window containing all the main...
OpenChild (Function)
Opens a non-modal child window.
Calling a procedure/a function
Syntax for calling a local or global procedure.
MyParameters (Reserved word)
The MyParameters keyword is used to handle the parameters passed to a WLanguage procedure...