ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

How to create an SQL query to count?
This help page explains how to create a count query with the query editor....
Error 301: Unknown identifier
Carrying over the differences from an element to another one
The project comparator is used to compare two elements and to list the differences found......
Opening a window from a secondary thread
A secondary thread cannot directly open a window with the standard WLanguage functions such as......
<xmlDocument variable>.Save (Function)
Saves an XML document in a file.
<Document variable>.Save (Function)
Saves a document as a "docx" file.
<xlsDocument variable>.Save (Function)
Saves an XLS document.
<zipArchive variable>.Split (Function)
Splits an archive into several sub-archives of a given size.
<DiskFile variable>.Size (Function)
Returns the size of a file (in bytes).
<Diagram variable>.Save (Function)
Saves a diagram as a "diag" file.
Combo Box columns in Table controls
A Table control (populated programmatically, based on a data file or based on a variable) can include Combo Box columns......
Handling a dynamic programmatically
WINDEV allows you to handle Dynamic Tab controls with the TabXXX functions and with multiple WLanguage properties......
Drawing charts in an Image control
WINDEV and WEBDEV propose several functions for creating and handling charts......
Null (Reserved word)
The Null keyword can be used according to different methods in WLanguage......
Spreadsheet control in a report
The spreadsheet is one of the most often used business tools. You have the ability to create reports that print the data found in a spreadsheet....
The structure of the RAD patterns (kept for backward compatibility)
...The RAD pattern files (MDL files) are used to describe:...
ERR_MAX_CONNECTION
...ERR_MAX_CONNECTION...
Common project
Projects are often cross-platform......
sysNotificationButton (Type of variable)
The sysNotificationButton type is used to define all the advanced characteristics of Button control in an interactive notification.
Managing a Text token Edit control
...Interfaces that use token controls are common. A Token control contains variable amounts of information in a limited area....
Telephony constants
List of constants used by telephony functions...
Custom properties (WLanguage)
A custom property is a code element with two events......
Report data source
...The reports can be created with the data coming from:...
Characteristics of Table controls in a page
Table controls allow you to display and/or enter data......
The Table control
The Table control is used to simplify the display and the input of information stored in memory or coming from a data file, a view or a query......