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Stored procedures
Changes the lightness of an image found:
  • in an Image control,
  • in an Image variable.
Versions 17 and later
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
New in version 17
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
WINDEVLinux This function is now available for WINDEV applications in Linux.
Linux This function is now available for WEBDEV sites in Linux.
Linux Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
// Change the lightness of the image found in IMG_Image1
dModifyLightness(IMG_Image1, 50)
Syntax
<Result> = dModifyLightness(<Source image> , <Variation of lightness> [, <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.
<Variation of lightness>: Integer
Value included between -100 and +100. This value will be added to the current lightness of each pixel to get a new lightness.
<Destination image>: Name of the Image control or variable
Image where the transformed image will be drawn. This image can correspond to:
  • the name of an Image control.
  • the name of a Image variable.
If this parameter is not specified, the transformation will be performed on the <Source image>.
Remarks
Component : wd250pnt.dll
Minimum version required
  • Version 10
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