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  • Lesson 1 - WLanguage
  • What is WLanguage?
  • A project to discover WLanguage

Tutorial - WLanguage basics

Lesson 1 - WLanguage
We will cover the following topics:
  • What is WLanguage?
  • How to discover WLanguage?
Durée de la leçon 5 min
What is WLanguage?
WLanguage is the programming language of WINDEV, WEBDEV and WINDEV Mobile. In this tutorial, we will take a look at the basics of this language: variables, conditional statements, procedures, etc.
WLanguage is a rich fifth-generation language (5GL) that offers many programming possibilities with a robust code editor that makes coding significantly easier.
WLanguage is event-driven. Code is written in the corresponding WLanguage event. For example, this event can be associated with a control, window, page, report, etc. All events are available in the code editor. You can add additional events and manage special cases programmatically.
You can also use object-oriented programming (OOP). Member and method, constructor, destructor, multiple inheritance, virtual method, polymorphism, etc. One lesson in this part is entirely dedicated to OOP.
Programming controls or objects is very simple, using specific functions and/or properties. Simply type the name of the control or object in the code editor to see all the functions or properties that can be used with it.
WLanguage functions that use controls or objects accept two syntaxes:
  • standard syntax. In this case, WLanguage functions start with the name of the corresponding "family" name. Thus, all the functions used to manipulate Table controls start with "Table".
    For example, to add elements in a Table control, you can use TableAddLine, specifying the name of the Table control as the first parameter:
    // Add "Moore" and "Vince" 
    // in the last row of the "TABLE_ProductTable" control
    TableAddLine(TABLE_ProductTable, "Moore", "Vince")
  • prefix syntax.
    In this case, the name of the manipulated element is specified first. With the previous example, we can simply use AddLine on the Table control:
    // Add "Moore" and "Vince" 
    // in the last row of the "TABLE_ProductTable" control
    TABLE_ProductTable.AddLine("Moore", "Vince")
A project to discover WLanguage
In this tutorial, we will focus on the WLanguage code. No UI is required.
To do so, we will create a project (necessary for any programming task with WINDEV). In this project, we will write the WLanguage code directly in the code editor. This code can be tested immediately, by simply clicking "GO".
This project will be used in the different lessons of this tutorial.
Caution: The project creation method was simplified in version 2024 Update 2. This page has been adapted to cover the new method.
Simply follow these steps to create a project:
  1. Go to the WINDEV home page (Ctrl + <).
  2. On the home page, click "Create a project" and select "Windows or Linux application". The project creation wizard starts. The different steps of the wizard will help you create your project.
  3. Select the style book of the project. For this tutorial, we will keep the default skin template ("Eleven"). Go to the next step of the wizard ("Next").
  4. The wizard prompts you to enter the project name and location. In our case, this project will simply be named "WLanguage". By default, WINDEV creates this project in the "\My projects\WLanguage" directory.
    You can keep this location or change it via the [...] button.
  5. Click "Finish": the project is created. The new element window appears. Close this window by clicking "X" in the upper-right corner.
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Minimum version required
  • Version 2024
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Last update: 03/29/2024

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