ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Time management
For each element (windows, reports, ...
Null (Reserved word)
The Null keyword can be used according to different methods in WLanguage...
3-tier architecture
The development in "3-tier" architecture is now simplified...
WINDEV and the communication streams (audio, sound)
To handle the communication streams, WINDEV includes...
Principle of remote check
WEBDEV proposes several methods for deploying a dynamic site...
Handling the versions of a window, report, query or project
When creating and developing the different elements of a project (window, query, report, project, ...
AJAXAsynchronousCallPending (Function)
Used to find out whether a server procedure called by AJAXExecuteAsynchronous is currently run.
AJAXAvailable (Function)
Used to find out whether the AJAX technology is supported by the current browser.
WinAdaptSize (Function)
Adapts the window size to the content of controls.
<Diagram variable>.ToImage (Function)
Exports a diagram to a variable of type Image.
diagSelection (Type of variable)
The diagSelection type is used to define all the advanced characteristics of a selection made...
DiagramGroup (Function)
Creates a group from the elements selected in the Diagram Editor control.
DiagramUngroup (Function)
Dissociates the different shapes of a group in a Diagram Editor control.
<Diagram editor>.DiagramInfoXY (Function)
Indicates the presence of a shape at a given position in the Diagram Editor control.
RegistryRename (Function)
Renames a key in the registry.
RegistryCopyKey (Function)
Copies a registry key with all its subkeys and values.
ChangeSourcePage (Function)
Dynamically changes the page displayed in an Internal Page control
HourglassNetwork (Function)
Displays or hides an endless gauge in the title bar of Android application windows .
Errors while managing tables
When an HFSQL function fails (returns False for example), the corresponding error number...
Link functions
Link functions are used to link the interface with the data files (and vice versa). These functions...
InvalidInputShowTooltip (Function)
Shows an error tooltip under an Edit control to indicate why the input is invalid.
InvalidInputShowIcon (Function)
Shows an error icon next to an Edit control to indicate that the input is invalid.
Providing an image per DPI
On mobile, when displaying images, each device has its own physical size and its own graphic...
HFSQL properties associated with the queries and views
List of HFSQL properties associated with the queries and views...
WEBDEV styles
WEBDEV styles are advanced styles......
<Connection variable>.ListScheduledOptimization (Function)
Lists the scheduled optimization tasks of HFSQL Client/Server data files for a connection....
<pdfDocument variable>.Save (Function)
Saves the content of a pdfDocument variable in a ".PDF" file.
<Connection variable>.DeleteScheduledOptimization (Function)
Deletes a scheduled optimization task from HFSQL Client/Server data files....
WDADMINEXE: Information on the latest available update
The "Setup" tab of WDADMINEXE contains information regarding the last available update...