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, ...
EventExist (Function)
Indicates whether a specific procedure is run when a Windows event is sent to a control or window.
<Date type>.ToString (Function)
Converts: a date to a string in the specified format. a date time to a string...
<Chart>.Parameter (Function)
Retrieves or modifies a chart parameter.
<Email variable>.BuildSource (Function)
Generates the source code of the email to send from an Email variable.
OCRModelPathDirectory (Function)
Used to set the directory that contains the language models for the native OCR system.
OCRDeleteAllLanguages (Function)
Deletes all languages from the native OCR system.
PopupDisplayPage (Function)
Displays a WEBDEV page as a popup in the current page with a DDW (Dim Disabled Windows) effect.
PopupClosePage (Function)
Hides a page displayed as a popup via PopupDisplayPage.
CoordinateImageToImageControl (Function)
Converts the coordinates of a rectangle in the image to the corresponding coordinates in the Image...
<Source>.ImportText (Function)
Imports a Text file into a data file in HFSQL Classic or Client/Server format (data file described...
Toast constants
<Connection variable>.ExecuteScheduledBackup (Function)
Forces the execution of a scheduled backup.
<Connection variable>.CloseConnection (Function)
Closes a connection to a database.
<Connection variable>.ListScheduledBackup (Function)
Lists the full and differential backups that have been scheduled on HFSQL Client/Server....
CookieRead (Function)
Retrieves the value of a cookie saved on the computer of Web user.
CookieWrite (Function)
Writes a cookie onto the computer of the Web user.
Interacting with the user
WINDEV, WEBDEV and WINDEV Mobile allow you to communicate with the user via dialog boxes......
RegistrySetValue (Function)
Writes a value to a key in the Windows registry.
RegistryExist (Function)
Checks the existence of a key in the Windows registry.
RegistryQueryValue (Function)
Reads a value in the Windows registry.
gLink (Function)
Adds an "invisible" value into an element found in a List Box or Combo Box control. Function kept...
WindowBitmap (Function)
Creates the image of the specified window in a BMP file.
CurrentWin (Function)
Identifies the window currently in edit.
DateValid (Function)
Checks the validity of a date between January 01 0001 and December 31 9999.
Min (Function)
Returns the lowest value.