ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Version: 2026

Parameters of a procedure/function
You have the ability to pass parameters to a procedure.
Declaring a procedure/a function
The different syntaxes for declaring a procedure...
Calling a procedure/a function
Syntax for calling a local or global procedure.
Procedure/Function
A procedure is used to associate an identifier with a statement block...
Global procedure/function
A global procedure can be used in all the processes or events of the project.
Parameters of a procedure with a variable number of parameters
When the procedure uses a variable number of parameters, you must be able to handle the different parameters passed to the function in the code of the procedure.
Prototype overload/Overload
The procedures and the methods of classes can have several syntaxes.
Passing parameters
The parameters can be passed to a procedure...
MyParameters (Reserved word)
The MyParameters keyword is used to handle the parameters passed to a WLanguage procedure...
Local procedure
Two types of procedures are available...
Typecasting of parameters
The description of the parameter type is optional...
<Image>.DrawChord (Function)
Draws the chord of a circle (intersection between an ellipse and a straight line) in an Image...
<Image>.Background (Function)
Declares the default background color for the rectangles and circles, ... used in an Image control.
<Image>.DrawLine (Function)
Draws a line in an Image control.
<Image>.DrawPoint (Function)
Draws a point in an Image control.
<Image>.ModifySaturation (Function)
Changes the saturation of an image in an Image control.
<Image>.ModifyHue (Function)
Changes the hue of an image in an Image control.
<Image>.DrawCircle (Function)
Draws a circle or an ellipse in an Image control.
<Image>.PixelColor (Function)
Identifies the color of a pixel in an Image control.
<Image>.ModifyHSL (Function)
Modifies the hue, the saturation and the lightness of an image in an Image control.
<Image>.PixelOpacity (Function)
Identifies the opacity of a pixel in an image (in an Image control) with an Alpha channel.
<Image>.Resize (Function)
Resizes an image in an Image control.
<Image>.Rotation (Function)
Rotates an Image control.
<Image>.SaveBMP (Function)
Saves an image: in a file in BMP format. in memory....
<Image>.SaveGIF (Function)
Saves an image: in a file in GIF format. in memory....
<Image>.SavePNG (Function)
Saves an image: in a PNG file. in memory....
<Image>.EndDrawing (Function)
Deletes all the drawings made since the last call to dStartDrawing.
<Image>.HorizontalSymmetry (Function)
Flips an image in an Image control with respect to a horizontal axis (symmetry with respect...
<Image>.VerticalSymmetry (Function)
Flips an image contained in an Image control with respect to a vertical axis (symmetry with respect...
<Image>.SaveJPEG (Function)
Saves an image: in a JPEG file. in memory....
<Page>.Exist (Function)
Allows you to find out whether a page context exists on the server (which means whether the page...
<Window>.WinRedraw (Function)
Immediately redraws the window controls for which a graphic update is required.
<Window>.FromFile (Function)
Automatically updates the controls in a window or page with: the values of the bound items...
<Page>.FromFile (Function)
Automatically updates the controls of a page with: the values of the bound items in the current...
<Organizer>.DateVisible (Function)
Makes a day visible or invisible in an Organizer control.
<Organizer>.WorkingHour (Function)
Used to indicate the specific working hours per day in an Organizer control.