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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...
HCloseConnection (Function)
Closes a connection to a database.
HInfoUser (Function)
Updates the variables for user management with the information regarding the specified user.
AIDetectDrawing (Function)
Classifies freehand drawings, including circles, squares and triangles.
AIDetectContour (Function)
Detects the contours of the shapes in an image.
ScanList (Function)
Lists the scanners connected to the current computer.
<PDF reader>.GoToBookmark (Function)
Sets the position directly on the desired bookmark in the PDF document.
SourceFile (Property)
The SourceFile property is used to set the characteristics of a link.
HPriority (Function)
Finds out and modifies the priority of the calling application.
HPriorityClient (Function)
Modifies the priority of a client application.
HDeleteDirectory (Function)
Deletes a directory from an HFSQL Client/Server database....
HListParameter (Function)
Returns the list of parameters saved from the stored procedures on the server.
<modbusSession>.WriteRegister (Function)
Writes one or more registers (16-bit values) to a Modbus slave, starting at a specific address.
<modbusSession>.Disconnect (Function)
Closes the Modbus session.
<modbusSession>.WriteFloat (Function)
Writes one or more single-precision floats to a Modbus slave, starting at a specific address.
LinkedFile (Property)
The LinkedFile property is used to set the characteristics of a link.
fFileName (Function)
Returns the name of an external file that is currently opened.
fSize (Function)
Returns the size of a file (in bytes).
DurationToString (Function)
Converts a duration to a character string in the specified format.
HDeleteFile (Function)
Deletes the HFSQL data files (.fic, .ndx, .ftx and .mmo files if they exist) from the server.
HInfoDatabaseProperty (Function)
Used to find out the properties of a database on an HFSQL server.
HInfoFileProperty (Function)
Allows you to find out the properties of a data file located in an HFSQL server.
HInfoServerProperty (Function)
Allows you to find out the properties of an HFSQL server.
DriveMoveFile (Function)
Moves a file present in an Drive directory to another directory on this Drive (remote disk).
<Variable Drive>Rename (Function)
Rename a file or directory on an Drive.
HModifyScheduledOptimization (Function)
Modifies a scheduled optimization task on the HFSQL server defined by the connection.