ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2025

WDZip: Creating or modifying an archive
This help page explains how to......
Execute (Function)
Starts the execution of a process through programming.
ExecuteProcess (Function)
Starts the execution of a process programmatically, i.e. without the user having to perform any particular action in the interface.
MatchRegularExpression (Function)
Checks whether a character string matches a specific format and retrieves the different substrings that match the format.
ChangeCharset (Function)
Retrieves and/or changes the character set used: by all the screen fonts. by all the operations performed on the character strings (functions and/or operators)....
HWrite (Function)
Writes a record into a data file without updating the indexes corresponding to all keys used in the file.
Modifying the query content
The queries are used to easily select the records coming from one or more files, matching one or more selection criteria, ......
HTransactionStart (Function)
Starts a transaction on the data files (HFSQL or accessed via a Native Connector) and creates the transaction file.
HCreateView (Function)
Creates an HFSQL view. This function uses the former view mechanism....
HDeclareExternal (Function)
Temporarily imports into the current analysis the description of a data file from an existing HFSQL data file.
HReadPrevious (Function)
Sets the position on the previous record of a file according to a browse item.
fWriteLine (Function)
Writes a line into a text file (ANSI or UNICODE).
Trace (Function)
Displays the requested information (content of a control, for example) in a window opened next to the current window.
MaxValue (Property)
The MaxValue property is used to: get and set the top value of a report based on a data file. get the maximum value of the current filter. get the maximum value of a data series in a chart. get and set the maximum value for some types of controls....
MinValue (Property)
The MinValue property is used to: get and set the bottom value of a report based on a data file. get the minimum value of the current filter. get the minimum value of a data series in a chart. get and set the minimum value for some types of controls....
Null (Reserved word)
The Null keyword can be used according to different methods in WLanguage......
StoredItem (Property)
The StoredItem property is used to: Find out the stored item or the stored variable of a Table, Looper, List Box or Combo Box control. Modify the stored item or the stored variable of a Table, Looper, List Box or Combo Box control....
XInitial (Property)
The XInitial property is used to: Get the X-coordinate: of a control (position on the X-axis) when opening the window or the page. of a window (position on X-axis) when opening the window. Change the X-coordinate of a control anchored "to the right" (position on the X-axis) when opening the window. Get the X-coordinate of a control in relation to its block (position in millimeters on the X-axis) when opening the report....
YInitial (Property)
The YInitial property is used to: Find out the Y-coordinate: of a control (position on Y-axis) when opening the window or the page. of a window (position on Y-axis) when opening the window. Modify the Y-coordinate of a control anchored "to bottom" (position on the vertical axis) when opening the window. Find out the Y-coordinate of a control in relation to its block (position in millimeters on the vertical axis) when opening the report....
YesNo (Function)
Displays a message in a standard dialog box that proposes "Yes" and "No" and returns the user's choice....
iPreview (Function)
Configures the print destination.
The Contact structure
The Contact structure is a preset structure of WLanguage (no declaration is required)......
1. Project audits
WINDEV Tutorial: Optimizing a project Lesson 1 - Project audits - 15 min
Programming charts
WINDEV, WEBDEV and WINDEV Mobile include a Chart control (that can be used in the window editor, page editor and report editor) as well as several functions used to create and handle charts......
Custom properties (WLanguage)
A custom property is a code element with two events......