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...
COMCreateInstance (Function)
Instantiates a COM object (Component Object Model).
COMCallMethod (Function)
Runs a method of an interface of a COM object instantiated by COMCreateInstance.
<TimeLine>.AddEvent (Function)
Adds an event into a TimeLine control.
<Map>.InfoPosition (Function)
Returns the coordinates (in pixels) of the point corresponding to a geographical position (latitude...
zipExist (Function)
Used to find out whether an archive exists.
ModbusWriteFloat (Function)
Writes one or more single-precision floats to a Modbus slave, starting at a specific address.
Toast constants
Component (Property)
The Component property configures the different components of a composite key.
ThreadExecute (Function)
Starts the execution of a secondary thread.
zipFindFile (Function)
Finds a file in an archive (in CAB, ZIP, RAR, WDZ or 7z format).
zipCreateExe (Function)
Creates a self-extracting archive as a 32-bit executable (.EXE).
zipListFile (Function)
Returns the list of files found in an archive.
zipDeleteFileList (Function)
Deletes a list of files from an archive.
<xmlDocument>.ToJSON (Function)
Converts an XML string to JSON.
<redisConnection>.Get (Function)
Gets the value of a key from a Redis server as a string.
<redisConnection>.Set (Function)
Changes the value of a key on a Redis server.
<redisConnection>.Publish (Function)
Publishes a message on a Redis broadcast channel.
<redisConnection>.Unsubscribe (Function)
Cancels a subscription to a Redis broadcast channel.
<redisConnection>.Subscribe (Function)
Subscribes to a Redis broadcast channel.
<Gantt chart>.ListLink (Function)
Lists the links in a Gantt Chart column in a Table or TreeView Table control.
<Gantt chart>.DeleteLink (Function)
Removes links from a Gantt Chart column in a Table or TreeView Table control.
QuickActionList (Function)
Lists the application's quick actions....
NotifPushSendSubscriber (Function)
Sends a notification to Android devices that are subscribed to a topic.
HDeleteTask (Function)
Deletes a scheduled task from an HFSQL Client/Server server....
HListTask (Function)
Lists the scheduled tasks of an HFSQL Client/Server server for a given connection....