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...
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...
WLanguage types
The different types in WLanguage are...
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.
HTTPCookieWrite (Function)
Adds or modifies a cookie in an HTTP request.
DocSave (Function)
Saves a document as a "docx" file.
Managing the certificates
Signing a file allows you to check that the file was not modified or altered since it was signed....
NFC functions
Functions used to manage the NFC standard...
NFCStatus (Function)
Returns the activation status of the NFC sensor found on the device.
NFCReadTag (Function)
Starts reading a NFC tag or enables the detection of NFC tags for the current window.
NFCWriteTag (Function)
Starts writing data to an NFC tag.
NFCSendTag (Function)
Sends a NFC tag to another device.
FBRequest (Function)
Performs a communication request (HTTP request) to the Facebook Graph API.
<Map>.DisplayPosition (Function)
Centers the map displayed in a Map control on a geographical position or on a specific location.
PicMergeLayer (Function)
Merges the layers of a WDPic image.
DownloadAdd (Function)
Adds a new download in the device's download manager....
DownloadGetInfo (Function)
Retrieves the details of a download present in the download manager.
DownloadRemove (Function)
Cancels a download by removing it from the download manager, and deletes any existing files.
DownloadList (Function)
Lists the downloads from the current application in the download manager.
HDeleteSchedulingHistory (Function)
Deletes the executions of a scheduled operation on an HFSQL server. This operation can...
<Array>.InsertLine (Function)
Inserts a row at a given position: into a two-dimensional WLanguage array. into an advanced...
<Array>.DeleteLine (Function)
Deletes a line at a given position: from a two-dimensional array. from the advanced array...
<Array>.MoveLine (Function)
Allows you to: move a row in a two-dimensional array or in an advanced array property....
HListSchedulingHistory (Function)
Lists the executions of a scheduled job on an HFSQL server. This job can be a scheduled task...