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...
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.
Assignment operators
Three assignment operators are available...
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.
HInfoTask (Function)
Returns the characteristics of a scheduled task in a hScheduledTask variable].
XMLOpen (Function)
Loads an XML document from a file, a URL or a string into an xmlDocument variable.
dModifyHue (Function)
Modifies the hue of an image found: in an Image control, in an Image variable....
fLoadBuffer (Function)
Loads the content of an external file (text, image, ...) in a buffer variable.
dModifyContrast (Function)
Changes the contrast of an image contained: in an Image control, in an Image variable....
SQLAssociate (Function)
Automatically associates each column of the query result with a control or with a variable...
dCopyControlImage (Function)
Copies the image of a control in a WINDEV window to a variable of type Image.
CertificateCheckFileSignatureBuffer (Function)
... variable.
CriticalSection (Function)
Activates a critical section named or on a variable in an instruction of type USE ... IN.
dLoadImage (Function)
Loads an image in an Image variable from a memo, a file or a binary buffer.
Handling a Slider control through programming
WINDEV and WINDEV Mobile allow you to handle a Slider control through programming......
Handling a Spin control through programming
WINDEV allows you to handle a Spin control through programming......
VersionHTTP (Property)
The HTTPVersion property is used to manage the HTTP version used by the server....
Content of the Table control
A Table control can be based on a data file, based on a variable or populated programmatically......
How to create and handle a structure?
This help page explains how to create and handle a structure....
StoredItem (Property)
The StoredItem property is used to: Find out the stored item or the stored variable of a Table,...
ServiceModify (Function)
... of the Service variable.
dHalo (Function)
Adds a halo effect on an image found in an Image variable].
dShadow (Function)
Adds a shadow effect on an image found in an Image variable].
HTMLEditorToEmail (Function)
Exports the content of an HTML Editor control to an Email variable (to send the email).
<HTML editor>.ToEmail (Function)
Exports the content of an HTML Editor control to an Email variable (to send the email).
Dimension (Function)
Returns the size of a variable (string, numeric, array, ...) or resizes a dynamic array.