Member variable XbpBitmap():transparency Foundation
Level of transparency to apply to the image.
The :transparency instance variable specifies the level of transparency to apply when displaying the image via the method :draw(). The transparency level can be defined ranging from 0 (opaque) to 255 (fully transparent), and must be set prior to calling :draw(). The :transparency setting is applied to the entire image and can be specified irrespective of whether transparent areas are defined for the image either via :transparentClr or via per-pixel transparency in the image itself.
The value assigned to :transparency is ignored under Windows 95 and Windows NT.
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