ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

How to create an SQL query to get a TOP 10?
This help page presents the method for creating an SQL query used to get the first 10 records......
ExecuteMainThread (Function)
Triggers the execution of the procedure specified in the main application thread.
SWITCH statement
The SWITCH statement is used to choose the action that will be run according to the value of an expression...
TriState (Property)
The TriState property is used to: Determine if a check box option supports 3 or 2 states. Determine if a TreeView control uses 3-state or 2-state check boxes. Change the type of an option in a check box: option with 3 states or with 2 states....
ListDeleteAll (Function)
Clears a List Box, ListView or Combo Box control populated programmatically.
ListDelete (Function)
Deletes an element from a List Box, ListView or Combo Box control populated programmatically.
grGridlines (Function)
Displays or hides the chart gridlines.
grLineThickness (Function)
Retrieves and/or modifies the value of the line thickness in a line chart....
iNestedHeaderFooter (Function)
Prints (or not) the page headers and footers of nested report.
Multiline Zone control properties
A Multiline Zone control and the lines of a Multiline Zone control can be handled in a window by the following WLanguage properties.
Creating a .NET assembly from WINDEV
To create a.NET assembly, ......
Using the Control Centers in Client/Server mode
All the Control Centers provided with WINDEV, WEBDEV and WINDEV Mobile use the same database......
User (Property)
The User property is used to identify and change the user of a feature.
How to create a query with external join?
In SQL language, an external join is used to exclude or include file records with or without correspondences in the linked files......
InputMask (Type of variable)
The InputMask type is used to define all the advanced characteristics of a custom input mask.
Variant (Type of variable)
The Variant type is used to: store any simple value: boolean, numeric (Currency, Real, Integer, etc.), characters and character string, date (Date, Time, DateTime and Duration), ... store named or indexed subelements. store any complex value: structures, classes, advanced types, arrays, associative arrays, queues, stacks and lists. handle the NULL value in WLanguage. store interactions with ActiveX objects and Automation programming....
Drawing in WINDEV, WEBDEV and WINDEV Mobile
WINDEV, WEBDEV and WINDEV Mobile include several functions for displaying, drawing, copying and saving the drawings and images from your applications or sites......
ChangeCharset (Function)
Retrieves and/or changes the character set used: by all the screen fonts. by all the operations performed on the character strings (functions and/or operators)....
SQLGetCol (Function)
Retrieves the content of the specified column from the query result, for the current line.
Number (Property)
The Number property is used to get the number of an element.
Creating and deploying a setup program: How to?
Creating the setup program allows you to deploy a WINDEV application on the end-user computers......
SystemBarColor (Property)
The SystemBarColor property is used to get or change the system bar color in full-screen windows on mobile devices.
ErrorWithTimeout (Function)
Displays a custom error message in a system error window for a set amount of time.
CheckSpell (Property)
The CheckSpell property is used to enable or disable the automatic spelling checker.
<Image variable>.SavePNG (Function)
Saves an image found in an Image variable: in a PNG file. in memory....