ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

WDAPI overview
WDAPI simplifies the use of Windows APIs in a WINDEV application......
Custom telemetry
Custom telemetry allows you to define the elements that will be included in the analytics......
Error 19: The step of this FOR loop must be constant
Error 1015: The method of the class is protected
<Cell>.DisplayDialog (Function)
Displays a Cell control in a page with a DDW effect (Dim Disabled Windows). This function is used to easily simulate a dialog box in browser code, by using a Cell control in a page.
CellDisplayDialog (Function)
Displays a Cell control in a page with a DDW effect (Dim Disabled Windows). This function is used to easily simulate a dialog box in browser code, by using a Cell control in a page.
Handling an HTML control through programming
WINDEV and WEBDEV allow you to handle an HTML control through programming......
Zombie procedures
In most cases, old code contains procedures that are used but that do no longer match the current quality standard......
Characteristics of the Looper control in a page
To view the characteristics of the control, select "Description" in the context menu....
Errors while managing data files
When an HFSQL function fails (returns False for example), the corresponding error number is returned by HError......
Linking a Table control to a data file or query
A Table control can be used to display the content of a data file or query......
The Internal Window control
The "Internal Window" control is used to include a window (and its code) in a control of another window......
JITc
The principle of JITc technology (Just In Time Compilation) is straightforward......
Multi-product external components
Components are a remarkably useful tool for development teams......
Events associated with TreeView Table controls
List of events associated with the TreeView Table controls...
Open document tabs
The document tabs allow you to navigate between the different elements opened in the different editors....
The "Code" pane
The "Code" pane is used to handle the procedures (local and global procedures) and the classes found in the current project ("Global procedures", "Local procedures" and "Classes" options)......
Creating a select query
A select query (corresponding SQL statement......
Code indentation
When typing compound statements ("Switch", "For" and "While", for example), the code is automatically indented to highlight the structure of the loops used in the program......
Automatic procedures
The programming of timers, threads and delayed procedures is now automatically managed by the environment......
Code editor: Display options
The code editor proposes several display options......
Error 1: Syntax error
Writing to the Free Technical Support
When you encounter a problem, try to isolate it and to reproduce it by using the minimum number of elements......
AWP without UI
Bootstrap, Angular, React, Vue......
Error 1010: The member of the class is constant