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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)...
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...
Constant
The constants are language elements whose value is fixed once and for all...
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.
WLanguage types
The different types in WLanguage are...
Assignment operators
Three assignment operators are available...
<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.
<WDPic variable>.Background (Function)
Declares the default background color for the rectangles and circles, ... used in a WDPic variable.
<WDPic variable>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<picLayer variable>.AlphaBlend (Function)
Blends two images together. This allows you to create fade-in effects between 2 images.
<WDPic variable>.PixelColor (Function)
Identifies the color of a pixel contained in a WDPic variable.
<picLayer variable>.Background (Function)
... variable.
<picLayer variable>.PixelColor (Function)
Identifies the color of a pixel contained in a picLayer variable.
<WDPic variable>.PixelOpacity (Function)
Identifies the opacity of a pixel in a WDPic image with an Alpha channel.
<picLayer variable>.PixelOpacity (Function)
Identifies the opacity of a pixel in a WDPicLayer image with an Alpha channel.
<WDPic variable>.Font (Function)
Declares the font that will be used by dText in a WDPic variable.
<picLayer variable>.Font (Function)
Declares the font that will be used by dText in a picLayer variable.
<WDPic variable>.DrawPolyline (Function)
Draws a line composed of multiple segments.
<picLayer variable>.DrawPolyline (Function)
Draws a line composed of multiple segments.
<WDPic variable>.DrawSlice (Function)
Draws a section of a circle or an ellipse in a WDPic variable.
<picLayer variable>.DrawSlice (Function)
Draws a section of a circle or an ellipse in a picLayer variable.
<WDPic variable>.DrawRoundedRectangle (Function)
Draws a rounded rectangle in a WDPic variable.
<picLayer variable>.DrawRoundedRectangle (Function)
Draws a rounded rectangle in a picLayer variable.
<WDPic variable>.Pen (Function)
Declares the default color and style for the lines, rectangles, circles, ... in a WDPic variable.
<picLayer variable>.Pen (Function)
... variable.
<WDPic variable>.HorizontalSymmetry (Function)
Flips an image contained in a WDPic variable with respect to a horizontal axis (symmetry...
<picLayer variable>.HorizontalSymmetry (Function)
Flips an image contained in a picLayer variable with respect to a horizontal axis (symmetry...
<WDPic variable>.VerticalSymmetry (Function)
Flips an image contained in a WDPic variable (in the background layer) with respect to a vertical...
<picLayer variable>.VerticalSymmetry (Function)
Flips an image contained in a picLayer variable with respect to a vertical axis (symmetry...
<WDPic variable>.DrawTextRTF (Function)
Draws an RTF text in a WDPic variable.
<picLayer variable>.DrawTextRTF (Function)
Draws an RTF text in a picLayer variable.
<mongoDatabase variable>.Info (Function)
Returns information about a MongoDB database.