ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

TwainToJPEG (Function)
Allows you to: save the document coming from the Twain device in a JPEG file. view the document coming from the Twain device in the user interface of device. save the document coming from the Twain device directly in memory in JPEG format (in a buffer)....
CalculatedItemExpression (Property)
The CalculatedItemExpression property is used to: Find out the SQL expression that defines the value of a calculated item. This item was defined in the data model editor or through programming. Define the SQL expression returning the value of a calculated item (when describing the item through programming)....
CalculatedDefaultValue (Property)
The CalculatedDefaultValue property is used to: Find out the SQL expression that defines the default value of an item. This item was defined in the data model editor or through programming. Define the SQL expression that returns the default value of an item (item described through programming only)....
<Array>.DeleteAll (Function)
Deletes all elements: from a one-dimensional or two-dimensional WLanguage array. from an associative array. from the advanced array property (array of gglCalendar events, ...). from a WLanguage queue. from a WLanguage stack. from a WLanguage list....
Compilation options
The compilation options allow you to define the help system generation settings......
Creating index keywords
Index keywords allow users to easily find a help page......
Managing the users of an application installed in network
The management of users allows you to find out from the server......
Image properties (help system)
At any time, you can change the characteristics of an image inserted into a help page in the image properties......
nWDEvaluate: Evaluating the value of an element
Evaluating the value of an element......
LineHeight (Property)
The LineHeight property is used to get and change the height of the rows: in a List Box control, in a ListView control (standard display mode only), in a Table control, in a Combo Box control, in a Looper control (height of the row), in an Organizer control....
ExtendedInfo (Property)
The ExtendedInfo property is used to get additional information: about a data file accessed by a Native Connector or HFSQL Client/Server. about an item accessed by a Native Connector or HFSQL Client/Server. about a connection. In this case, this property is equivalent to CtExtendedInfo....
TwainToGIF (Function)
Allows you to: save the document coming from the Twain device in a GIF file. view the document coming from the Twain device in the user interface of device. save the document coming from the Twain device directly in memory in GIF format (in a buffer)....
TwainToPDF (Function)
Allows you to: save the document coming from the Twain device in a PDF file. view the document coming from the Twain device in the user interface of device. save the document coming from the Twain device directly in memory in PDF format (in a buffer)....
Binding Bar Code controls to items
A Bar Code control can be bound to an item in a data file, query, etc....
Validating a page from a control that has no action on the server (List Box control, Combo Box, etc.)
By default, the validation of a page must be performed by a "Send the values of controls to the server (Submit)" button......
Handling a TreeView Table control programmatically
This page explains how to program TreeView Table controls......
Appendix 4: WEBDEV modules
The table below presents the modules installed by the WEBDEV application server for Linux and their main features......
AppOpenForm (Function)
Opens: the form of an application on Android (Play Store), iOS (App Store) or Windows (Windows Store) in order for the user to give a mark to it and/or to comment it. the form for configuring the In-App purchases of an application....
What is a database?
A database is an organized collection of data for a particular purpose (e.g., manage orders)......
Locking data files: correspondence between WINDEV 5.5 and the later versions
The log process
...A log is a special file that contains the history of all changes made to one or more data files over a given period of time (date the file was created, last automatic data modification, last backup created with WDLog, etc.)...
Compressing frames (DSL, 3G, Edge, VPN, ...)
A frame is a packet ot data that flows through the network......
SaaS administrator - Managing a client
Managing a SaaS client account is used to......
Spreadsheet control in a report
The spreadsheet is one of the most often used business tools. You have the ability to create reports that print the data found in a spreadsheet....
Finding the unused WEBDEV styles
In most cases, most of the presentation styles are created when designing a site......