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 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...
DriveListeFileGgl (Function)
Lists files from the Google suite (Google Docs, Google SpreadSheets, etc.) present in a Google...
<Toast>.Display (Function)
Displays a "Toast" message.
DocRedo (Function)
Restores the last undone action on a Word Processing document.
DocUndoCount (Function)
Returns the number of actions that can be undone on a document.
zipExtractFileList (Function)
Extracts and decompresses a list of files found in an archive to a physical location.
DocRedoCount (Function)
Returns the number of canceled actions that can be redone on a Word Processing document.
<Image>.DrawSlice (Function)
Draws a circle or an ellipse section in an Image control.
<Image>.DrawPolygon (Function)
Draws a polygon in an Image control,
<Image>.SaveBMP (Function)
Saves an image: in a file in BMP format. in memory....
<Image>.SaveGIF (Function)
Saves an image: in a file in GIF format. in memory....
<Image>.SavePNG (Function)
Saves an image: in a PNG file. in memory....
<Image>.SaveJPEG (Function)
Saves an image: in a JPEG file. in memory....
Management of MQTT (prefix syntax)
MQTT is a "publish-subscribe" messaging protocol based on the TCP/IP protocol......
HTMLEditorFromEmail (Function)
Imports the HTML content of an email and its images into an HTML Editor control. The images...
Data model editor: the different types of items
The different types of items proposed in the data model editor are as follows:
NumberPage (Property)
The NumberPage property is used to get: the number of pages in a "multi-page" image file....
zipCurrentFile (Function)
Returns the name of the archived file currently handled by the functions for adding and extracting...
<Kanban>.MoveCard (Function)
Moves a card in a Kanban control.
<Kanban>.AddCard (Function)
Adds a card to a list in a Kanban control.
HInfoBackup (Function)
Returns information about one or more backups performed on an HFSQL Client/Server server....
ContactSelect (Function)
Displays the list of contacts found on the device (Android, iPhone or iPad, Universal Windows).
Constants used by the replication between HFSQL servers
The following constants are used by the replication between HFSQL servers:...
Internal procedure
Several features require a procedure called once or several times via a WLanguage function...
Managing MQTT
MQTT is a "publish-subscribe" messaging protocol based on the TCP/IP protocol......
HBackup (Function)
Makes a backup copy of the content of an HFSQL server: all databases on the server, one...