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Stored procedures
Modifies the hue of an image found:
  • in an Image control,
  • in an Image variable.
    PHP This type of variable is not available.
Example
// Changes the hue of the image found in the IMG_Image1 control
dModifyHue(IMG_Image1, 50)
Syntax
<Result> = dModifyHue(<Source image> , <Variation of hue> [, <Destination image>])
<Result>: Boolean
  • True if the change was performed,
  • False otherwise.
<Source image>: Character string (with or without quotes) or Image variable
Image to use. This image can correspond to:
  • the name of an Image control.
  • the name of an Image variable.
    PHP This type of variable is not available.
<Variation of hue>: Integer
Value included between -360 and +360. This value will be added to the current hue of each pixel to get a new hue.
<Destination image>: Optional character string (with or without quotes) or Image variable
Image where the transformed image will be drawn. This image can correspond to:
  • the name of an Image control.
  • the name of an Image variable.
    PHP This type of variable is not available.
If this parameter is not specified, the transformation will be performed on the <Source image>.
Remarks
PHP

Pattern and PHP

In PHP, the drawing functions are based on the graphic library GD. This library is commonly used by the PHP hosting companies and therefore it is always enabled. The version of the GD library must be version 2.0.28 (or later). This library can be downloaded from the PHP site.
To enable (if necessary) this library locally, the following elements are required:
  • PHP installed.
  • the PHP.INI file found in the Windows directory must contain the following line: "extension=php_gd2.dll" (instead of ";extension=php_gd2.dll").
  • the php_gd2.dll file must exist in the directory of PHP extensions. This directory is defined in the PHP.INI file by the "extension_dir" variable.
Component: wd260pnt.dll
Minimum version required
  • Version 10
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