ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Notifications of an HFSQL server
A server may encounter problems without any user (or developer) noticing anything.
For example:
  • a scheduled task may fail,
  • an automatic backup may fail,
  • a node may become inactive in an HFSQL cluster, ...
Docker image of the HFSQL server
A Docker container with the HFSQL server is available on Docker Hub...
HOperationInProgress (Function)
Returns the list of automatic operations in progress on an HFSQL server.
HServerMaintenance (Function)
Checks and optimizes the system tables of an HFSQL server.
<Connection variable>.ServerMaintenance (Function)
Checks and optimizes the system tables of an HFSQL server.
Installing an HFSQL Client/Server server with an application
When creating the setup program of a WINDEV application using HFSQL Client/Server data files, the wizard allows you to...
HManageServerUpdate (Function)
Allows you to manage the automatic update of HFSQL Client/Server servers and to define how often to check for updates.
HStartServerUpdate (Function)
Used to immediately start the automatic server update.
<Connection variable>.StartServerUpdate (Function)
Used to immediately start the automatic server update.
<Connection variable>.OperationInProgress (Function)
Returns the list of automatic operations in progress on an HFSQL server.
InStoredProcedureMode (Function)
Indicates whether the code is run on an HFSQL server.
<Connection variable>.ManageServerUpdate (Function)
Used to manage the automatic update of HFSQL Client/Server servers by specifying the check frequency regarding the availability of updates.
HFSQL and Docker
Docker is a software platform that allows you to run applications in software containers on Linux (Docker runs like a daemon)...
HListServer (Function)
Lists the HFSQL servers installed on a computer.
grExist (Function)
Checks the existence of a chart in memory.
EmailSeekFirst (Function)
Finds one or more emails according to the criteria specified in the messaging software (Outlook, messaging software using the IMAP protocol, ...).
dCopyImage (Example)
Usage example of the dCopyImage function
zipExtractAll (Example)
Usage example of the zipExtractAll function
grOrientation (Function)
Modifies the orientation of chart axes.
X (Property)
The X property is used to: Get the X-coordinate of a control, Table control column or window (position on the X-axis). Get the X-coordinate of a control or window (position on the X-axis)....
The Progress Bar control
The Progress Bar control is used to follow the progress of an event......
Input (Function)
Displays a message allowing the user to type an information.
Customizing the setup program (Plug-in)
In a setup program, you may want to customize some actions......
ThreadCurrent (Function)
Returns the name of the thread currently run.
1. Managing emails
WINDEV includes multiple methods to manage emails...
ChangeTarget (Function)
Changes the target of a button action.
PreviousPage (Function)
Returns the name of the previous page.
LooperDisplay (Function)
Refreshes a Looper control based on a data file from a given position: the modifications performed in the linked file are applied to the looper.
SemaphoreDestroy (Function)
Explicitly destroys a semaphore.
HTTPTimeOut (Function)
Sets the timeout for WLanguage functions that use the HTTP protocol (HTTPRequest, SOAPExecute, DotNetExecute, J2EEExecute, etc.).
iPageHeightLeft (Function)
Calculates the available height (in millimeters) left on the current page while taking into account the defined margins (top or bottom).
Kanban control events
The following events are associated with Kanban controls......
BackgroundTaskAdd (Function)
Adds a new background task.
Other operators
The following are additional operators......
Control constants
List of constants used by the functions for managing controls...
Handling RTF in an Edit control
Rich Text Format (RTF) is used to encode text and simplify exchange between applications......
DeleteParameter (Function)
Deletes a parameter (or a set of parameters) saved either by SaveParameter, or automatically via the persistence of data in the controls.
zipExtractFile (Function)
Extracts a file from an archive and automatically decompresses it to a physical location or in memory.
The Dashboard control
Dashboards are essential elements in an application......