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image->initialise
image ->initialise: name=[source_sink]*, width=[int], height=[int], kind=[{bitmap,pixmap}]
Two idiomatic ways to construct an image:

  • Reusable file-backed image: new(I, image(File)). The constructor first looks File up in @images; on a hit it returns the existing instance. Otherwise it builds a new image and image->loads its pixels from the file. Such images get image<-access read.
  • Anonymous read-write image: new(I, image(@nil, Width, Height)). These images are not pooled and have image<-access both.

    The kind argument selects between pixmap (default) and bitmap.

    See also
    - image->load
    - image<-lookup
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