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Stored procedures
Changes the contrast of an image contained in an Image control.
Example
// Change contrast
IMG_Image1.ModifyLightness(50)
Syntax
<Result> = <Image control>.ModifyContrast(<Contrast variation> [, <Destination image>])
<Result>: Boolean
  • True if the contrast was modified,
  • False otherwise.
<Image control>: Control name
Name of the Image control to be used.
<Contrast variation>: Real
Value between -100 and +100. Negative values decrease the contrast, positive values increase it. This value will be added to the current contrast to get a new contrast.
<Destination image>: Optional control name or optional Image variable
Image where the transformed image will be drawn. The image can correspond to:
  • the name of an Image control.
  • the name of a variable of type Image.
If this parameter is not specified, the transformation will be performed in <Image control>
Business / UI classification: Neutral code
Component: wd280pnt.dll
See also
Minimum version required
  • Version 28
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