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.
<Polygon2D variable>.Disjoint (Function)
Determines whether two geometries are disjoint, i.e. whether their intersection is empty.
<Polygon2D variable>.Intersect (Function)
Checks whether the intersection of a 2D polygon and another geometry does not result in an empty...
FOR EACH/FOR ALL statement (loop through a variable of type XMLReader)
The FOR EACH statement loops through a variable of type xmlReader in various ways: Loop...
<Polygon2D variable>.Overlap (Function)
Determines if a 2D polygon overlaps another geometry.
<Polygon2D variable>.Correct (Function)
Returns a corrected version of the specified 2D polygon.
<Polygon2D variable>.Within (Function)
Determines whether geometry A (2D polygon) is completely within geometry B (i.e., geometry B...
<Linestring2D variable>.AddPoint (Function)
Adds a new point to a 2D linestring.
<emailPOP3Session variable>.NbMessage (Function)
Returns the number of incoming messages on the email server (POP3 protocol only).
<Polygon2D variable>.Cross (Function)
Determines if a 2D polygon crosses another geometry.
<Polygon2D variable>.Touch (Function)
Determines whether a 2D polygon touches another geometry.
<Polygon2D variable>.Contain (Function)
Determines if geometry A (of type 2D polygon) contains geometry B.
<Polygon2D variable>.Area (Function)
Calculates the area of a polygon defined using 2D coordinates.
<Polygon2D variable>.Difference (Function)
Returns a geometry representing the difference between a 2D polygon and another geometry.
<Polygon2D variable>.Union (Function)
Returns a geometry corresponding to the union between a 2D polygon and another geometry.
Manipulating Map controls programmatically
WINDEV, WEBDEV and WINDEV Mobile allow you to programmatically manipulate Map controls....
PageLayout (Property)
... The layout of the diagram is defined in a variable of type diagLayout.
HCopyRecord (Function)
the content of the Record variable to the current table record....
<Destination>.CopyRecord (Function)
the content of the Record variable to the current table record....
Constants used by the XML signature
Constants used by the XML signature...
Minute (Property)
The Minute property is used to: Retrieve the minutes from a Time or DateTime variable,...
How to populate a TreeView control using a data file?
By default, the TreeView control cannot automatically display the data coming from a data file......
Manipulating Combo Box controls programmatically
WINDEV, WINDEV Mobile and WEBDEV allow you to programmatically manipulate Combo Box controls......