accessing bitmaps bits

 Hi all,

this is more of a theoretical question. I wonder
how anyone would wrap the wxRawBitmap classes and
-more interesting to me- how efficient these would
be. The largely undocuemented wxRawBitmap classes
provide direct access to the pixel data of alpha-
channeled wxBitmaps under all platforms and the
classes involved overcome differences in ordering
of colour channels using C++ templates. This makes
it possible to access the RGBA bits with no loss
of CPU cycles.

What I'm actually asking is how efficient C# apps
can handle bit manipulation of this kind. I'd 
think that here C++ would show a major advantage,
but how big/relevant this would be in is what 
I know nothing about. Can the .NET or Mono JIT
produce efficient code even for that or can the
code give hints?

  Robert 



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