PC SOFT

ONLINE HELP
 WINDEVWEBDEV AND WINDEV MOBILE

Home | Sign in | English EN
  • End of drawing
  • Pattern and PHP
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
Inverts the colors:
  • of an Image control,
  • in an Image variable.
    PHP This type of variable is not available.
Example
// Inverts the colors of the IMG_Image1 control
Result1 is boolean
Result1 = dInvertColor(IMG_Image1)
IF Result1 = False THEN Error("The operation failed")
Syntax
<Result> = dInvertColor(<Image>)
<Result>: Boolean
  • True if the inversion of colors was performed,
  • False otherwise.
<Image>: Name of Image control, Image, WDPic or picLayer 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.
Each pixel found in the image takes the opposite color from its initial color (bit-to-bit reversal). The image used is directly modified.
Remarks

End of drawing

The transformation of the image will not be displayed if dEndDrawing and dInvertColor are called in the same process.
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 9
This page is also available for…
Comments
Click [Add] to post a comment