ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Data Source (Variable type)
A Data Source variable is used to describe a temporary data source (query, view, alias, etc.).
<Source>.DataSourceKnown (Function)
Determines if a data source has been initialized.
MySource (Reserved word)
MySource is used to handle the current data source (file, view or query) associated with a report or with a table based on a data file...
HDataSourceKnown (Function)
Determines if a data source has been initialized.
SQLListSource (Function)
Lists the data sources declared on a local site.
HDeleteView (Function)
Deletes a previously created view. This function uses the former view mechanism.
Changing an application to 64-bit
WINDEV allows you to develop 64-bit applications......
HMergeView (Function)
Creates an HFSQL view from two previously created views (HCreateView). This function uses the former view mechanism.
HListQueryParameter (Function)
Returns the list of parameters for a query created in the query editor.
HUnlockRecNum (Function)
Unlocks a record locked by: HLockRecNum, a read function used with a locking parameter (HRead associated with the hLockWrite or hLockReadWrite constant for example)....
HSetDuplicates (Function)
Enables or disables the management of duplicates on a unique key.
AnchorRateHeight (Property)
The AnchorRateHeight property is used to: Find out the vertical anchor rate of a control. Modify the vertical anchor rate of a control....
Telemetry: Installing the server
To use the telemetry, you must install on a computer......
<Polygon2D variable>.Perimeter (Function)
Calculates the perimeter of a polygon defined using 2D coordinates.
HToItem (Function)
Assigns the specified value to an item of the current record.
<Linestring2D variable>.AddPoint (Function)
Adds a new point to a 2D linestring.
HFileExist (Function)
Determines: whether a file exists, which means whether it was physically created (HCreation or HCreationIfNotFound). whether a view or a query was defined....
DayHeight (Property)
The DayHeight property is used to get and change the height of days in a Scheduler control where days are arranged in rows, and resources are arranged in columns.
16. Java applications in practice
Java applications in practice...
HFTListWord (Function)
Lists the words of the current record that will be taken into account by the full-text indexing.
Programming automatic calculations in the columns of a Table control
Native Access to SAP
SAP is a widely used ERP......
HReadSeek (Function)
Sets the position on the first record whose value for a specific item is greater than or equal to a sought value (generic search).
12. Pages in practice
Linestring2DAddPoint (Function)
Adds a new point to a 2D linestring.
The different types of integers
Assisted HFSQL error handling
WINDEV, WEBDEV and WINDEV Mobile include a module for assisted management of HFSQL errors......
JavaExecuteFunction (Function)
Starts a specific static function of a given Java class.
HExtractMemo (Function)
Extracts the content of a binary memo item from an HFSQL file, a query or an HFSQL view to a physical file (on disk).
DayBreakHeight (Property)
The DayBreakHeight property is used to get and change the height of breaks between days in a Scheduler control where days are arranged in rows, and resources are arranged in columns.