ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Declaring and using a variable
A variable is defined by name and type...
Service variable
The Service variable is used to...
Report based on a variable (Data binding)
A report based on a variable is used to directly print the information found in a WLanguage variable...
Composite variable
A composite variable contains different types of elements (members)...
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Advanced types
The advanced types of WLanguage are as follows
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
WLanguage types
The different types in WLanguage are...
IsNumeric (Function)
Enables you to find out whether a variable or a control is:
  • a numeric (integer, real, currency or numeric).
  • a string that can be converted into numeric.
Assignment operators
Three assignment operators are available...
Constant
The constants are language elements whose value is fixed once and for all...
<Source>.Reset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
HReset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
HDeleteFile (Function)
Deletes HFSQL tables (.fic, .ndx, .ftx, .sdx and .mmo files, if any) from the server.
HDeleteDirectory (Function)
Deletes a directory from an HFSQL Client/Server database....
AppointmentList (Function)
Lists the appointments found on the mobile device (Android/iOS) and corresponding to the specified...
DurationToString (Function)
Converts a duration to a character string in the specified format.
<Pivot Table>.InfoXY (Function)
Returns the values of headers corresponding to a position in a Pivot Table control in pixels.
GanttDeleteLink (Function)
Removes links from a Gantt Chart column in a Table or TreeView Table control.
ParallelTaskWaitAll (Function)
Waits for the end of execution of all parallel tasks found in an array.
HModifyScheduledOptimization (Function)
Modifies a scheduled optimization task on the HFSQL server defined by the connection.
<Source>.InfoFile (Function)
Returns the characteristics of an HFSQL Classic or Client/Server table....
ScanList (Function)
Lists the scanners connected to the current computer.
AIDetectDrawing (Function)
Classifies freehand drawings, including circles, squares and triangles.
SizeUnit (Property)
The SizeUnit property gets and sets the font size unit.
HPriorityClient (Function)
Modifies the priority of a client application.
<PDF reader>.GoToBookmark (Function)
Sets the position directly on the desired bookmark in the PDF document.
GDPR (Property)
The GDPR property is used to: find out if the GDPR applies to an item from a table. define...
HInfoDatabaseProperty (Function)
Used to find out the properties of a database on an HFSQL server.
<Word Processing>.Select (Function)
Selects a fragment in a Word Processing control.
ContactList (Function)
Lists the device contacts corresponding to the specified criteria.
fFileName (Function)
Returns the name of an external file that is currently opened.
HPriority (Function)
Finds out and modifies the priority of the calling application.
HListParameter (Function)
Returns the list of parameters saved from the stored procedures on the server.
<modbusSession>.WriteRegister (Function)
Writes one or more registers (16-bit values) to a Modbus slave, starting at a specific address.
<modbusSession>.Disconnect (Function)
Closes the Modbus session.