ONLINE HELP
 WINDEV, WEBDEV AND WINDEV MOBILE

Version: 2025
Character string: How do I extract, delete or replace words?
This page presents the main operations that can be performed on a character string.
JSONToString (Function)
Converts the content of a JSON variable to a JSON string.
LineToPosition (Function)
Returns the position of the first character of a line in a block of text.
CommonLength (Function)
Returns the number of common characters between two strings (from the beginning or from the end of the string).
Pascal string of (Variable type)
The Pascal string of type corresponds to a length-prefixed string (this length is stored as a byte value). This type of variable is kept for backward compatibility.
String literals: single-line and multiline strings
String literals are used to represent and manipulate data as a sequence of characters. For example, string literals can be used to display information, define a constant, etc.
fInsertTextAtBeginning (Function)
Inserts text at the beginning of a file without overwriting the existing text.
Unicode in character strings
The Unicode format is an encoding system that assigns a unique number to each character.
NoCharacter (Function)
Returns a string after removing the specified leading and trailing characters.
<ANSI string>.CharactTypeCount (Function)
Returns the number of characters matching a given type.
WordCount (Function)
Returns the number of words in a string.
String functions (prefix syntax)
The following functions are used to handle strings, using prefix syntax:
StringIncrement (Function)
Increments a number at the beginning or at the end of a string.
StringReverse (Function)
Reverses the characters of a string.
ASCIIZ string of (Variable type)
The ASCIIZ string of type is used to manipulate strings with a null character at the end, denoted by a zero (as in the C programming language).
<ANSI string>.Insert (Function)
Inserts a string into another character string at a given position.
StringToJSON (Function)
Converts a JSON string into a JSON variable.
PositionToLine (Function)
Returns the number of the line that contains a character identified by its position in a block of text.
Position (Function)
Finds the position of a specified string within another string.
RTFReplace (Function)
Replaces or inserts a character string in an RTF control (found in a window or in a report) or in a string in RTF (containing a text in RTF).
String (Variable type)
The String type is used to manipulate strings...
FOR ALL/FOR EACH statement (browse of strings)
The FOR EACH statement is used to browse strings according to different methods...
PositionOccurrence (Function)
Finds the Xth position of a string within another string.
Phonetic (Function)
Returns the phonetic transcription of the string passed as parameter.
<ANSI string>.EndsWith (Function)
Checks whether a character string ends with:
  • with a specific character string.
  • with one of the character strings in an array.
Length (Function)
Returns:
  • the length of a string, i.e., the number of characters in the string (including spaces and binary zeros).
  • the size of a buffer, i.e., the number of bytes in the buffer.
ExtractLine (Function)
Extracts a specific line from a character string.
<Unicode string>.RegexMatch (Function)
Checks whether a string matches the format defined by a regular expression.
UUEncode (Function)
Encodes a character string according to the UUEncode algorithm.
ExtractStringBetween (Function)
Allows you to:
  • extract a substring between two given separators from a character string.
  • search for substrings between two given separators in a character string.
Functions for managing RTF controls
List of functions for managing RTF controls
gToText (Function)
Deletes the graphic elements from a character string that uses gStoredValue, gImage, ...
String of (Variable type)
The String of type is used to manipulate fixed-length strings. These strings have a null character at the end, denoted by a zero (as in the C programming language).
<JSON variable>.ToString (Function)
Converts the content of a JSON variable to a JSON string.
NoAccent (Function)
Converts accented characters in a string to non-accented characters.
Unicode string on (Variable type)
The type Unicode string on is a fixed-length string containing only characters in Unicode format.
Truncate (Function)
Truncates the right part of a string or buffer.
StringDelete (Function)
Deletes:
  • all the occurrences of a substring within a string.
  • part of a string within another string. The part of the string to remove is identified by its position and length.
<ANSI string>.Reverse (Function)
Reverses the characters of a string.
WordToArray (Function)
Fills an array with the words from a string.
MatchRegularExpression (Function)
Checks whether a character string matches a specific format and retrieves the different substrings that match the format.
StringInsert (Function)
Inserts a string into another character string at a given position.
Multilingual messages: Convert to new format (version 27 and later)
WINDEV, WEBDEV and WINDEV Mobile have included multilingual project support in many previous versions...
StringEndsWith (Function)
Checks whether a character string ends with:
  • with a specific character string.
  • with one of the character strings in an array.
CharactTypeCount (Function)
Returns the number of characters matching a given type.
<ANSI string>.DeleteDuplicate (Function)
Removes duplicates among substrings of a string, based on one or more separators.
Translating programming messages
When developing a multilingual application, you can translate the different messages displayed to the user (messages displayed by Info and YesNo, for example.
StringDeleteDuplicate (Function)
Removes duplicates among substrings of a string, based on one or more separators.
<Table>.ToText (Function)
Creates a character string from the data found in a Table or TreeView Table control.
TextToXML (Function)
Converts an ANSI string to an XML string.
<ANSI string>.RegexMatch (Function)
Checks whether a string matches the format defined by a regular expression.
String functions
List of functions for managing character strings
Middle (Function)
Extracts:
  • a substring from a string starting at a specified position.
  • part of a buffer starting at a specified position.
<DiskFile variable>.Find (Function)
Finds a character string or a buffer in a file opened by fOpen.
NoLeftCharacter (Function)
Returns a string after removing the specified characters from the left side of the initial string.
RegexMatch (Function)
Checks whether a string matches the format defined by a regular expression.
Operators on character strings
The character strings can be handled by specific WLanguage functions or by the +, [[ and ]] operators...
<ANSI string>.Increment (Function)
Increments a number at the beginning or at the end of a string.
Project string manager
WINDEV, WEBDEV and WINDEV Mobile include a string management tool that allows you to view and manipulate all the strings used in the project (or in an element of the project)...
NoRightCharacter (Function)
Returns a string after removing the specified characters from the right side of the initial string.
Manipulate character strings
WINDEV, WINDEV Mobile and WEBDEV allow you to perform different types of operations on character strings via the WLanguage functions...
1. Creating windows to add and edit data
WINDEV Tutorial: WINDEV application: Managing data Lesson 1 - Creating windows to add and edit data - 50 min
1. My first Android/iOS project
WINDEV Mobile tutorial: My first Android/iOS application Lesson 1 - My first Android/iOS project - 1 hr...
Multilingual project
Installing the robot controller
The monitoring robot includes three executables......
Monitoring robot: General check parameters
The general parameters of the check must be defined when creating or modifying a check......
AAF: Context menu of Image controls
A context menu is available for Image controls......
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......
Display modes, transparency and symmetry of an image
An image can be displayed in a window, a window control, a report control, a page control or a block according to several display modes....
Managing emails with "Simple MAPI"
Simple MAPI simplifies the management of emails received by the hosting company......
WDConver : Use in interactive mode
Before you start using WDConver, you must have......
2. Performance profiler
WEBDEV Tutorial - Optimizing a WEBDEV project Lesson 2 - Performance profiler - 15 min
2. Managing a database
WEBDEV Tutorial: My first WEBDEV website Lesson 2 - Managing a database - 30 min
WDMSG license agreement
WDMSG license agreement...
Setup by stand-alone physical media
A setup by stand-alone physical media allows you to provide a media that contains all the files required for installing and running a site......
Setup via physical media
A setup by physical media allows you to give to the hosting company a media containing all the files required to install the site on a server......
The UAC mechanism in Windows Vista (and later)
To increase security against worms and viruses, Windows Vista/7 implemented the UAC (User Account Control) mechanism......
Installing the monitoring robot
The monitoring robot includes three executables......
Configuring the AAF menus (Automatic Application Features)
WINDEV includes several Automatic Application Features (AAFs)......
Rights on the virtual directory
Handling Organizer controls programmatically
Organizer controls can be handled programmatically....
WEBDEV and Google Analytics
Google Analytics is a very popular tool for measuring site traffic......
iOS 14 widget windows
An iOS application with an iOS widget configuration can contain one or more iOS 14 widget windows......
User Control Center: Management of network applications
For each network application listed in the User Control Center, the "Management of network applications" section is used to......
Handling the framesets
The different operations that can be performed on the framesets are as follows......
WDInst: configuring the characteristics of the file setup
WDInst is used to configure the installation of files......
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