ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Zoom (Property)
The Zoom property gets or sets the zoom value: in an Image control. in a Map control. in an Organization Chart control. in a Table, TreeView Table, Pivot Table, Spreadsheet or List Box control. in a Word Processing control. in a PDF Reader control. in a Camera control. in a Diagram Editor control; in a window....
Ln (Function)
Calculates the Napierian logarithm (reverse of exponential) of a numeric value.
Log (Function)
Calculates the decimal logarithm of a numeric value.
Sin (Function)
Returns the sine of an angle.
UI compilation errors
UI compilation errors indicate the possible problems detected in your interfaces whenever a window, a page or a report is saved or whenever the project is recompiled......
MySelf (Reserved word)
MySelf is used to handle the current control...
fCreate (Example)
Usage example of the fCreate function
<Source>.OnError (Function)
Customizes the management of HFSQL errors.
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
LOOP statement
The statement block is repeated endlessly...
iParameterViewer (Function)
Configures the report viewer.
The Map control
The Map control allows you to display a map in order to geolocate, create a route, display points of interest (POI) and more....
List of reserved words
Constant
The constants are language elements whose value is fixed once and for all...
HModify (Function)
Modifies the specified record or the record found in memory in the data file (query or view).
fRead (Example)
Usage example of the fRead function
Scheduler control: Customize appointments
In the Scheduler control, the appointment is displayed in a specific area......
ExceptionThrow (Function)
Artificially triggers the security mechanism of WLanguage by throwing an exception.
Nation (Function)
Defines or identifies the display language (captions, messages, ...) used for the windows, pages, reports and controls.
ReturnedValue (Property)
The ReturnedValue property is used to: Get and change the value returned by a window, page or report. Get and change the value returned by an option in a Radio Button control....
HAdd (Function)
Adds: the record found in memory into the data file (query or view). the record found in a Record variable into the data file (query or view)....
CoTan (Function)
Calculates the cotangent of an angle.
Tangent (Function)
Calculates the tangent of an angle.
iParameterPreview (Function)
Configures the print preview: display a message regarding the resources of current computer. display or not the ribbon panes (as well as the buttons found). the export options available in the mini preview window....
HPrevious (Function)
Positions on the previous file record according to a browse item.