ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

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.
TextToHTML (Function)
Converts text to HTML (carriage returns are replaced by <BR>, accented characters are replaced by their equivalent in HTML, etc.).
XMLModify (Function)
Modifies the content of the current element found in the XML document.
GetColor (Function)
Allows you to get a set of harmonious colors without having to use a table of colors.
ImageFirst (Function)
Displays the first image for the scroll.
ImagePrevious (Function)
Displays the previous image for the scroll.
ImageNext (Function)
Displays the next image for the scroll.
ImageLast (Function)
Displays the last image for the scroll.
DeleteAll (Function)
Deletes all the elements: from a one-dimensional or two-dimensional WLanguage array. from an associative array. from an advanced array property (array of gglCalendar events, etc.). from a WLanguage queue. from a WLanguage stack. from a WLanguage list....
Different page layout methods
Tutorial - Anchors, zoning and layouts Different page layout methods - 30 min
Use (Function)
Opens a WINDEV window and closes all the other windows that were opened beforehand.
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).
LooperAdd (Function)
Adds a row at the end of a Looper control.
OpenAsynchronous (Function)
Opens a window whose result will be retrieved via a WLanguage procedure ("callback").
InitialValue (Property)
The InitialValue property is used to get the initial value of a control in a window or page.
The PDF Reader control
The "PDF Reader" control is an advanced control that allows end users to view PDF documents in their applications, without an external software......
Deserialize (Function)
Deserializes a buffer or a character string containing the data from a class, structure, array (including an associative array), queue, stack, list or advanced variable, as well as their subelements.
SQLGetCol (Function)
Retrieves the content of the specified column from the query result, for the current line.
SeekByProcedure (Function)
Seeks an element in a one-dimensional array by using a comparison procedure.
SwapLine (Function)
Used to swap two rows in a two-dimensional array or in an advanced array property.
XMLExtractDocument (Function)
Creates a new XML document from an existing XML document.
XMLRestorePosition (Function)
Restores the previously saved context of an XML document.
dCopyImage (Example)
Usage example of the dCopyImage function
ListInsert (Function)
Inserts an element into a List Box, ListView or Combo Box control populated programmatically.
DateTimeByDefault (Function)
Used to define the default value of Date, Time and DateTime variables.
DecimalToSexagesimal (Function)
Returns the sexagesimal angle (in base 60) corresponding to a decimal angle.