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)...
TypeVar (Function)
Identifies the type of an expression, a variable (during a call to a procedure for example) or a control.
Advanced types
The advanced types of WLanguage are as follows
Checkers available in the code editor
The code editor proposes several tools used to correct the code...
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.
Assignment operators
Three assignment operators are available...
Constant
The constants are language elements whose value is fixed once and for all...
<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.
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.
Type inference
The type inference is used to simplify the declaration of variables when the variable type can be automatically deduced by the compiler...
Code style
A code style is used to automatically prefix the name of all the variables and project elements (windows, report controls, classes, etc.
RedisSubscribe (Function)
Subscribes to a Redis broadcast channel.
RedisUnsubscribe (Function)
Cancels a subscription to a Redis broadcast channel.
XMLOpenReader (Function)
Creates a reader used to read an XML document without loading it in memory.
RedisPublish (Function)
Publishes a message on a Redis broadcast channel.
<Word Processing>.Save (Function)
Saves a document as a "docx" file.
<Duration type>.ToString (Function)
Converts a duration to a character string in the specified format.
OCRParameter (Function)
Initializes the general options of the native OCR (Optical Character Recognition) system.
XMLToJSON (Function)
Converts an XML string to JSON.
EmailExportHTML (Function)
Retrieves the HTML code of an email to display it in an HTML control (HTML control, HTML Display...
HTML Editor control functions
List of functions for managing HTML Editor controls...
ContinentList (Function)
Returns the list of continents.
Null (Property)
The Null property is used to: Assign NULL to the item for the current record. Find...
ThreadWait (Function)
Waits for the end of the execution of the specified thread.
HInfoDatabaseRights (Function)
Allows you to find out the rights granted to a user or to a group on a database.
HInfoFileRights (Function)
Allows you to find out the rights granted to a user or to a group on an HFSQL Client/Server data...
HInfoServerRights (Function)
Allows you to find out the rights granted to a user or group of users on a server.
HModifyDatabaseRights (Function)
Modifies the rights granted to a user or to a group for a HFSQL Client/Server database....
HModifyFileRights (Function)
Modifies the rights granted to a user or group on an HFSQL Client/Server data file....
HModifyServerRights (Function)
Modifies the rights granted to a user or to a group on an HFSQL server.
iDocumentPrinted (Function)
Determines whether the user printed the document from the report viewer.
RedisSet (Function)
Changes the value of a key on a Redis server.
RedisGet (Function)
Gets the value of a key from a Redis server as a string.
<PDF reader>.GetSignature (Function)
Gets the signature of a PDF document as a buffer.
HInfoUser (Function)
Updates the variables for user management with the information regarding the specified user.