All functions Mac OS X Windows Crossplatform Components New in version: 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2.0
Component: GraphicsMagick
Mac OS X: Works
Windows: Works
MBS( "GMImage.Opacity"; ImageRef; opacity )
Parameter | Description | Example value |
---|---|---|
ImageRef | The image reference (a number returned from the GMImage.New functions) | 1 |
opacity | The opacity, range from 0 to 255. | 127 |
Returns "OK" on success.
Set or attenuate the opacity channel in the image. If the image pixels are opaque then they are set to the specified opacity value, otherwise they are blended with the supplied opacity value. The value of opacity ranges from 0 (completely opaque) to MaxRGB. The defines OpaqueOpacity and TransparentOpacity are available to specify completely opaque or completely transparent, respectively.
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