[Mono-bugs] [Bug 493047] Drawing a locked Bitmap (LockBits) results in a black image

[bugzilla_noreply at novell.com]

http://bugzilla.novell.com/show_bug.cgi?id=493047

http://bugzilla.novell.com/show_bug.cgi?id=493047#c3


--- Comment #3 from Thomas Goldstein <stifu at free.fr> 2010-01-23 11:47:13 UTC ---
"On a side note, I have no idea why 32bppArgb and 24bppRgb behave differently,
as these tests show. A certain logic, limitation, or .NET bug?"

Oh wait, it makes sense after all. That's because the FastBitmap class
(included with the tests) uses PixelFormat.Format24bppRgb internally. If
changed to 32bppArgb, the 32bpp test gives the same result as the 24bpp one.

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