ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

FAQ about Windows Vista and later
This help page presents a list of problems that may occur when using Windows Vista and later...
Programming standard in Windows Vista and later
To increase security against worms and viruses, Windows Vista/7 implemented the UAC (User Account Control) mechanism.
Points to consider if your customers use Windows Vista (and later)
Windows Vista (and later) proposes several improvements...
The UAC mechanism in Windows Vista (and later)
To increase security against worms and viruses, Windows Vista/7 implemented the UAC (User Account Control) mechanism...
grAxisTitle (Function)
Defines the title of X-axis and the title of Y-axis in a chart.
Choosing the languages supported by the application
The choice of languages supported by the WINDEV or WINDEV Mobile application or by the WEBDEV site is performed at several levels......
HStatCalculate (Function)
Performs various statistical calculations on the file keys.
TableInsertChild (Function)
Inserts a row into a TreeView Table control, in a given hierarchy level.
HModifyScheduledOptimization (Function)
Modifies a scheduled optimization task on the HFSQL server defined by the connection.
grGetData (Function)
Retrieves a data from a chart.
ContactList (Function)
Lists the device contacts corresponding to the specified criteria.
grAxisVisible (Function)
Configures how the axes are displayed in Line or Column charts.
ArraySwapLine (Function)
Used to swap two rows in a two-dimensional array or in an advanced array property.
WordCount (Function)
Returns the number of words in a string.
ParallelTaskCancel (Function)
Immediately ends the execution of the current task: the task is flagged as ptsCanceled.
ParallelTaskWaitAll (Function)
Waits for the end of execution of all parallel tasks found in an array.
HRecordToJSON (Function)
Retrieves the structure and value of the current record and exports them into a string in JASON format.
ModbusReadFloat (Function)
Reads one or more single-precision floats from a Modbus slave, starting at a specific address.
Looper control functions
List of functions for managing Looper controls...
ExceptionEnable (Function)
Re-enables the current exception process if the exception was corrected.
MemOut (Function)
Used to find out whether the browse performed on a memory area is outside this memory area.
TableGiveChild (Function)
Returns the "children" of an element (lower level) in a TreeView Table control.
iTextHeight (Function)
Calculates the height of the font for the text to print (in millimeters).
NbDescribedThumbnail (Property)
The NbDescribedThumbnail property is used to get the number of thumbnails expected for an item.
HAlias (Example)
Usage example of the HAlias function
dClear (Function)
Clears the content of an Image variable or Image control and fills it with the specified color.
WordToArray (Function)
Fills an array with the words from a string.
The Multiline Zone control
The Multiline Zone control is used to easily create interfaces in iOS style....
Principle for running threads
At runtime, an application runs in a main thread......