ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Declaring and using a variable
A variable is defined by name and type...
Service variable
The Service variable is used to...
Report based on a variable (Data binding)
A report based on a variable is used to directly print the information found in a WLanguage variable...
Composite variable
A composite variable contains different types of elements (members)...
Advanced types
The advanced types of WLanguage are as follows
<Source>.Reset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
WLanguage types
The different types in WLanguage are...
IsNumeric (Function)
Enables you to find out whether a variable or a control is:
  • a numeric (integer, real, currency or numeric).
  • a string that can be converted into numeric.
HReset (Function)
Initializes:
  • one or all variables of file items with their default values.
  • one or all items of a Record variable with their default values.
Assignment operators
Three assignment operators are available...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Constant
The constants are language elements whose value is fixed once and for all...
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
<Connection variable>.NotifAddCCRecipient (Function)
Adds recipients for the notifications sent via the Control Centers (WDBal messaging tool).
<Connection variable>.NotifAddEmailRecipient (Function)
Adds recipients for the notifications sent by email.
<Connection variable>.NotifConfigure (Function)
Specifies and configures the server used to send notifications by the HFSQL server.
<Connection variable>.NotifListCCRecipient (Function)
Returns the list of recipients of a notification sent via the Control Centers (WDBal messaging...
<Connection variable>.ModifyUser (Function)
Modifies the information about a user according to the elements found in the corresponding...
File Description (Type of variable)
The File Description variable is used to programmatically describe data files.
Link Description (Type of variable)
A Link Description variable is used to describe a link between two data files through programming.
Item Description (Type of variable)
An Item Description variable is used to describe one or more items in a data file programmatically.
Data source (Type of variable)
A Data source variable is used to describe a temporary data source (query, view, alias, ...)
Buffer (Type de variable)
The buffer type corresponds to a binary memory area....
Dynamic structure (Type of variable)
A structure can be allocated dynamically...
Dynamic array (Type of variable)
A dynamic array is an "advanced" type of array...
Fixed array (Type of variable)
A fixed array is an "advanced" type of array...
Associative array (Type of variable)
An associative array is an "advanced" type of array...
<Diagram variable>.StartModification (Function)
Indicates the start of a series of actions performed in a variable of type Diagram in a single...
<Diagram variable>.EndModification (Function)
Indicates the end of a series of actions performed in a variable of type Diagram in a single event...
<Diagram variable>.ToSVG (Function)
Exports a diagram to an SVG image.
<Image variable>.ModifyContrast (Function)
Changes the contrast of an image in an Image variable.
<Image variable>.Blur (Function)
Blurs the entire given area in a variable of type Image.
<WDPic variable>.Blur (Function)
Blurs the entire given area in a variable of type WDPic (on the background layer).
<picLayer variable>.Blur (Function)
Blurs the entire given area in a variable of type picLayer.
<DiskFile variable>.Lock (Function)
Entirely or partially locks an external file.
<DiskFile variable>.Find (Function)
Finds a character string or a buffer in a file opened by fOpen.
<DiskFile variable>.Unlock (Function)
Entirely or partially unlocks an external file.
<DiskFile variable>.Read (Function)
Reads: a block of bytes (characters) in an external file (ANSI or Unicode), the content...