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.
Financial functions
List of financial functions...
HSetCache (Function)
Used to configure the management of caches in the HFSQL Client/Server engine....
ArcSin (Function)
Returns the arc sine of a numeric value (integer or real).
HListConnectedUser (Function)
Lists the users currently connected to one or more files handled by a Client/Server connection....
HDeactivateTrigger (Function)
Disables a trigger.
HDeleteDatabase (Function)
Deletes a database located on an HFSQL server.
HUpdateQuery (Function)
Creates or updates a query on an HFSQL server.
HFreePosition (Function)
Deletes a position saved by HSavePosition.
WDInst : generating the setup program
Generating the setup program is used to create the setup program according to the characteristics specified in the setup editor WDInst....
Operator on Address
The & operator returns the address of a variable as an integer
Val (Function)
Returns the numeric value of a character string.
Constants for managing character strings
List of constants used by string management functions...
fIsImage (Function)
Used to find out whether a file found on disk or a file contained in a buffer corresponds to an image format recognized by WINDEV, WEBDEV or WINDEV Mobile.
SchedulerChangeMode (Function)
Modifies the period (which means the number of days) displayed by a Scheduler control.
MinSourceCardinality (Property)
The MinSourceCardinality property is used to get and modify the minimum cardinality of the source item in the link.
Extension (Property)
The Extension property is used to: get the extension of a file defined in the data model editor or through programming. define the extension of a file (when the file is described through programming only)....
Italic (Property)
The Italic property is used to: Find out whether a Font variable is in italic type. Modify the italic attribute of a Font variable....
Numerical (Property)
Numerical is used to find out whether an item is a numeric item.
fSizeUncompressed (Function)
Returns the size of a file before compression. When a file is decompressed by fUncompress, we recommend that you to compare the non-compressed size of file with the available disk space.
MemExist (Function)
Checks the existence of a memory zone.
MemCurrent (Function)
Returns the index of the current element.
HCancelSeek (Function)
Cancels the current search criterion.
HInfoLock (Function)
Returns information about the lock set on a data file, on one or all the records in a data file.
HInfoGroup (Function)
Returns information about the specified group of users.
HInfoDatabaseRights (Function)
Allows you to find out the rights granted to a user or to a group on a database.