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Version: 2025

The Task structure
The Task structure is a preset structure of WLanguage (no declaration is required)......
List (Type of variable)
A List variable is a structured type that is used to group a set of elements of the same type.
Advanced management of class instances
The advanced management of instances is used to choose the mode for taking reference. This choice directly impacts the freeing of the class objects: depending on the selected take of reference, the "Destructor" will not be called at the same time....
ParallelTask (Type of variable)
The ParallelTask type is used to handle a task, which means a procedure run by a thread in the parallel programming.
Sub-query
A sub-query is a query whose result is used by another query......
Date (Type of variable)
The Date type enables you to easily handle the dates...
DateTime (Type of variable)
The DateTime type enables you to easily handle a date and a time...
OOP concepts
A class contains the description of a data structure (members) and the processes (methods) that handle this structure....
WeekNumber (Function)
Returns the week number within the year that corresponds to the specified date (this date is a character string).
WDSQL: Creating and running a script
A script is a set of SQL commands used to perform a specific operation (create a new table in the database, insert records, ......
UI compilation errors
UI compilation errors indicate the possible problems detected in your interfaces whenever a window, a page or a report is saved or whenever the project is recompiled......
OpenChild (Function)
Opens a non-modal child window.
Stack (Type of variable)
A Stack variable is a structured type that is used to group a set of elements of the same type.
RequestUpdateUIParent (Function)
Asks to run the "Request for refreshing the display" process of parent. This function is kept for backward compatibility.
ExecuteUpdateUIParent (Function)
Immediately executes the "Request for refreshing the display" event of the parent. This function is kept for backward compatibility.
Configuring the titles of columns (Table control)
The title of table columns is an important element of Table control......
LINUX: Accessing the ODBC databases
The native access to HFSQL Classic and Client/Server is available for the WINDEV applications running in Linux ("console" applications) and for the WEBDEV sites hosted in Linux......
Constants for the assisted replication
List of constants used by the functions for the assisted replication....
FillType (Property)
The FillType property is used to determine the type of source used to populate Table, List Box, ListView, Combo Box and Looper controls.
VisibleOutsideWindow (Property)
The VisibleOutsideWindow property is used to: determine if a button is visible even if its position (X,Y) is outside the border of the window (entirely or partially). modify the visibility of an "off-window" button....
PeriodSelection (Property)
The PeriodSelection property is used to determine and specify if the user can select a time period in an Scheduler or Organizer control.
LoadImage (Function)
Loads an image in memory so that it can be used later by gImage.
MatDeterminant (Function)
Calculates the determinant of a square matrix (the number of rows is equal to the number of columns).
MatRead (Function)
Reads the value of a matrix element.
Events associated with Slider controls
List of events associated with Slider controls in a window...