[Mono-dev] Transparency from GIF files does not show up in BitmapData
mail at christian-stuempel.de
Thu Feb 7 04:09:16 EST 2008
Hi everybody ,
my program analyzes System.Drawing.Bitmaps. Many pixel formats (all-
non indexed, some indexed) work fine, but in BitmapData of Bitmaps
from GIF image files which use transparent color I cannot find the
transparency information anywhere. From the source code I guessed
that the transparent index would get transformed into an ColorPalette
entry which has the alpha component set correctly. But all palette
entries are opaque.
A problem with the GIF decoder maybe? Any ideas?
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