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Version: 2026

The Bar Code control
The Bar Code control displays bar codes in your windows, pages or reports...
Bar Code functions
The following functions are used to manage bar codes:
iPrintBarCode (Function)
Prints a bar code (inside a rectangle).
Reading bar codes
WINDEV, WEBDEV and WINDEV Mobile allow you to create applications for reading bar codes...
Camera field: decode bar codes (prefix syntax)
In iOS and Android, bar codes can be decoded via the Camera control using BCCapture...
CameraStartDecoding (Function)
Starts decoding bar codes in a Camera control.
<Camera>.StopDecoding (Function)
Stops decoding a bar code in a Camera control.
CameraStopDecoding (Function)
Stops decoding bar codes in a Camera control.
Managing bar codes
The use of bar codes to identify and manage products has become essential...
Decoding bar codes using a Camera control
In iOS and Android, bar codes can be decoded via the Camera control using BCCapture...
BCCapture (Function)
Decodes the information stored in a bar code by using the device camera (Android, iPhone, iPad).
Printing bar codes
WINDEV, WEBDEV and WINDEV Mobile allow you to print bar codes.
BCToImage (Function)
Generates the image of a bar code.
BCDecode (Function)
Decodes the information stored in a QR Code bar code.
VideoStartDecoding (Function)
Starts decoding bar codes in a Camera control.
BCCalculateControlCharacter (Function)
Returns the check code of a bar code.
VideoStopDecoding (Function)
Stops decoding a bar code in a Camera control.
<Camera>.StartDecoding (Function)
Starts decoding bar codes in a Camera control.
FinError (Example)
Usage example of the FinError function
FinRedemption (Example)
Usage example of the FinRedemption function
VersionHTTP (Property)
The HTTPVersion property is used to manage the HTTP version used by the server....
EmailUpdate (Example)
Usage example of the EmailUpdate function
PrivateKey (Property)
The PrivateKey property manages connections that use private keys (SSH or MQTT connections).
HTMLToRGB (Function)
Converts the HTML color into RGB color.
YAML (Type of variable)
The YAML type simplifies the handling of data in YAML format.
sysNotification (Type of variable)
The sysNotification type is used to define all the advanced characteristics of an interactive system notification.
Using the query result
The result of a select query can be used in......
Handling a TreeView Table control programmatically
This page explains how to program TreeView Table controls......
Bluetooth functions
List of Bluetooth functions...
Parameter (Property)
The Parameter property is used to get and change certain parameters.
Error 531: The negative or null subscripts are not allowed
Error 305: The element does not exist in the window
HImportXLS (Function)
Imports an XLS file into a data file in HFSQL Classic or Client/Server format (data file described in the data model editor, or declared by HDeclare, HDeclareExternal or HDescribeFile)....
mlGetVariable (Function)
Retrieves the value of a variable for the MATLAB session.
mlSetVariable (Function)
Writes the value of a variable for the MATLAB session.
JSONToVariant (Example)
Usage example of the JSONToVariant function
MongoCreateCollection (Function)
Creates a collection in a MongoDB database while specifying the options of this collection.
Index (Property)
The Index property is used to get the index of an element.
ExeListDLL (Function)
Returns the list of libraries (".DLL" files) used by one of the applications currently run.
HDBOpen (Function)
Opens the xBase data file and the "memo" file if it exists.
SchedulerAddTrigger (Function)
Creates a trigger for a scheduled task.
MapFollowMovement (Function)
Displays the current location of the device in a Map control and updates the location as it moves.
Managing actions with Undo/Redo
WINDEV allows you to easily manage the Undo/Redo feature in your applications with the ActionXXX functions......