Create Transparent BitmapsIf you have problems in grasping the basics of mask and raster operations, or find it difficult to digest the materials you have tried hard to obtain, it is not yourself to blame. Most of the materials around on these topics are either too "dry" or only "half-baked" for non-professionals, some are even obsolete. This code not only shows how to create mask and transparency respectively, but also attempts to knit together the essential points pertaining to the inter-relationship of mask, transparency and raster operations, in a live example.