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...
Constant
The constants are language elements whose value is fixed once and for all...
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.
WLanguage types
The different types in WLanguage are...
Assignment operators
Three assignment operators are available...
<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.
<picLayer variable>.DrawTextRTF (Function)
Draws an RTF text in a picLayer variable.
<Connection variable>.InfoServerProperty (Function)
Allows you to find out the properties of an HFSQL server.
<Image variable>.Crop (Function)
Returns the cropped part of an image. This image is in an Image variable.
<ftpConnection variable>Attribute (Function)
Gets the attributes of a file located on an FTP server. This new function is available from WINDEV...
<WDPic variable>.DrawCircle (Function)
Draws a circle or an ellipse in a WDPic variable.
<emailIMAPSession variable>.UnsubscribeFromFolder (Function)
Removes a folder from the list of subscribed folders. This new function is available from WINDEV...
<Connection variable>.DuplicateDatabase (Function)
Duplicates the database associated with a connection on an HFSQL server.
<ParallelTask variable>.Execute (Function)
Triggers the execution of a parallel task.
<ftpConnection variable>.Size (Function)
Returns the size (in bytes) of a file located on an FTP server (File Transfer Protocol). This new...
<zipArchive variable>.DeleteFileList (Function)
Deletes a list of files from an archive.
<Connection variable>.DropView (Function)
Deletes a materialized view from the HFSQL server.
<Drive variable>.ListFile (Function)
Lists the files in a cloud-based drive directory.
<Drive variable>.CopyFile (Function)
Copies a single file on a remote drive to another directory on same drive.
<Connection variable>.RefreshView (Function)
Asks to recalculate the content of a materialized view.
<htmlDocument variable>.FindElementByTag (Function)
Searches for elements that correspond to a tag in an HTML document.
<xmlDocument variable>.ValidDocument (Function)
Validates an XML document from an XSD schema.
<docFragment variable>.Insert (Function)
Replaces the content of the current fragment. The objects that can be used are: an element,...
<DiskFile variable>.ChangeSize (Function)
Resizes an external file.
<Scanner variable>.ToPDF (Function)
Saves a document from a scanner to a PDF file.
Property Description (Variable type)
The Property Description type is used to get information about a property.
<Connection variable>.FileExist (Function)
Finds out if a file exists, i.e. if it has been physically created (HCreate...
<Connection variable>.LoadParameter (Function)
Reads a parameter that was saved from a stored procedure by HSaveParameter.
<WDPic variable>.Save (Function)
Saves the image contained in a WDPic variable.
<emailIMAPSession variable>.AddFolder (Function)
Adds a folder into the messaging software using IMAP (Internet Message Access Protocol), ...
Parameter Description (Type of variable)
Parameter Description variables are used to programmatically describe a parameter.