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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...
<Stack variable>.Push (Function)
Pushes an element onto the stack.
<Image variable>.ModifySaturation (Function)
Modifies the saturation of an image in an Image variable.
<Image variable>.ModifyHue (Function)
Changes the hue of an image in an Image variable.
<Image variable>.DrawShadow (Function)
Adds a shadow effect on an image found in an Image variable].
<List variable>.Info (Function)
Retrieves the characteristics of a WLanguage list: types of elements and number of elements.
<Image variable>.PixelColor (Function)
Identifies the color of a pixel contained in an Image variable.
<Image variable>.ModifyHSL (Function)
Modifies the hue, saturation and lightness of an image in an Image variable.
<Image variable>.PixelOpacity (Function)
Identifies the opacity of a pixel in an image (in an Image variable) with an Alpha channel.
<Image variable>.Resize (Function)
Resizes an image in an Image variable.
<Image variable>.Rotation (Function)
Rotates an image in an Image variable.
<Image variable>.SaveBMP (Function)
Saves an image contained in an Image variable: in a file in BMP format. in memory....
<Image variable>.SaveGIF (Function)
Saves an image found in an Image variable: in a file in GIF format. in memory....
<Icon variable>.SaveICO (Function)
Saves an image in icon format either in a file, or in memory.
<Image variable>.SavePNG (Function)
Saves an image found in an Image variable: in a PNG file. in memory....
<Image variable>.EndDrawing (Function)
Deletes all the drawings made since the last call to dStartDrawing.
<Image variable>.StartDrawing (Function)
Indicates that the drawing functions that will be used are intended for an Image variable.
<Image variable>.HorizontalSymmetry (Function)
Flips an image contained in an Image variable with respect to a horizontal axis (symmetry...
<Image variable>.VerticalSymmetry (Function)
Flips an image contained in an Image variable with respect to a vertical axis (symmetry...
<Image variable>.SaveJPEG (Function)
Saves an image found in an Image variable: in a JPEG file. in memory....
<Queue variable>.Enqueue (Function)
Adds an element to the queue.
<fbSession variable>.Status (Function)
Checks the status of a Facebook session.
<fbSession variable>.Stop (Function)
Stops the Facebook session that was started by FBStartSession.
<fbSession variable>.Start (Function)
Used to authenticate and log in to Faceboook.
<fbSession variable>.GetUserInformation (Function)
Gets the Facebook information of the connected user.
<fbSession variable>.Request (Function)
Sends an HTTP request to the Facebook Graph API.