ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Declaring the functions of the Windows API
Syntax for declaring the functions of the Windows API
Instance (Function)
Returns the "system handle" (HINSTANCE) of the current program.
Value of constants for the Windows 32-bit API
Value of constants for the Windows 32-bit API
CallDLL32 (Function)
Runs a function found in an external DLL.
API (Function)
Runs a function found in an external DLL.
Creating a select query
A select query (corresponding SQL statement......
SQL commands available in an SQL query
WINDEV allows you to easily run queries in SQL code......
NullIfEmpty (Property)
The NullIfEmpty property is used to: Find out whether the value returned by the control is NULL if its content is empty. Configure the value returned by the control if its content is empty....
CaptionHTML (Property)
The CaptionHTML property is used to handle the text of a control as HTML code.
LowerValue (Property)
The LowerValue property is used to: Get the lower bound of the interval currently selected in a Range Slider control. Change the lower bound of the interval currently selected in a Range Slider control....
CrosshairThickness (Property)
The CrosshairThickness property is used to determine and change the thickness of the crosshair in a Chart control.
CrosshairOpacity (Property)
The CrosshairOpacity property is used to determine and change the opacity of the crosshair in a Chart control.
Tilt (Property)
The Tilt property gets or sets the tilt of the map displayed in a Map control.
WidgetProcedure (Function)
Specifies the procedure that will be called when the user clicks an iOS 14 widget.
Image editor: Features
The image editor includes several features......
How to manage a multi-selection in a Table control?
This help page explains how to manage a multi-selection in a Table control....
9. Overlaying controls
12. Preventing from going back to a page
AAF: Handling the columns of a Table control
The Table controls displayed in a window allow the end user to perform several operations......
Debugger: Running a project step by step
Running a project step-by-step allows you to start the debugger when launching the application......
Binding a List Box control to an item
A List Box control can be bound to an item in a data file, query, etc....
Automated tests: Overview
Several test tools are available to guarantee the quality of your applications......
SCM Administrator: Administrator-only options
The SCM administrator includes specific tools for managing repositories......