ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

System constants
List of constants used by the system functions....
Diagram constants
The following constants are used to manage diagrams:...
TableSave (Function)
Updates or adds the record bound to the current row in the Table or TreeView Table control.
HBackward (Function)
Moves backward several records from the current position in the data file, according to a specified item.
HDeclareExternal (Function)
Temporarily imports into the current analysis the description of a data file from an existing HFSQL data file.
MapCircle (Type of variable)
The MapCircle type is used to define the characteristics of a circle to be drawn on the map displayed in a Map control.
Sound (Function)
Plays a sound in WAV format.
HListFile (Function)
Returns the list of files: found in the current analysis or in a specific analysis recognized by the HFSQL engine. The files defined by HDeclare, HDeclareExternal and HDescribeFile are taken into account. available on a connection via a native access or via an OLE DB driver. for a group of files defined in the data model editor....
Data source (Type of variable)
A Data source variable is used to describe a temporary data source (query, view, alias, ...)
WDTrans: Cancel the operations performed on a transaction file
If a transaction is in progress, cancels all operations performed on the files in transaction since the start of transaction......
Handling a TreeView Table control programmatically
This page explains how to program TreeView Table controls......
Lambda: Expressions and procedures
A lambda ("lambda function") is a more concise way to write internal procedures...
Properties associated with the tab pane
A tab pane found in a window or in a page can be handled by the following WLanguage properties......
TABOrder (Property)
The TABOrder property gets and sets the position of a control in the tab order of a window.
Flex control properties
The Flex control can be handled by the WLanguage properties in server code and in browser code......
LogFile (Property)
The LogFile property is used to determine if a data file is a log file.
InWebMode (Function)
Indicates whether the current process is run: from a WINDEV executable. from the WEBDEV runtime engine (AWP)....
Error 25: No THEN statement is associated with this IF
MovementAPT (Property)
The MovementAPT property allows you to know and specify whether users can move appointments in a Scheduler or Organizer control.
PeriodSelection (Property)
The PeriodSelection property is used to determine and specify if the user can select a time period in an Scheduler or Organizer control.
Insert (Function)
Inserts an element at a given position: into a one-dimensional WLanguage array. into an associative array. into an advanced array property (array of gglCalendar events, etc.). into a WLanguage list....
pdfParameter (Type of variable)
The pdfParameter type defines all the characteristics of the PDF file to be generated.
Item Description (Type of variable)
An Item Description variable is used to describe one or more items in a data file programmatically.
DDEString (Example)
Usage example of the DDEString function
URL Rewriting
URL Rewriting is a technique used to improve SEO......