Darren New wrote:

> I would think there's relatively little need to be slow in a program 
> like this, where it's all manipulation of fundamental structures. As in, 
> I would think the speed of a program like this in .NET wouldn't 
> necessarily be any slower than a similar program in plain C, unless the 
> JIT is just really bad.

But, that's sort of my point. :) You don't need to be down to the wire 
to get fast performance out of the system.

> Was there really any reason to use the unsafe pointers?
> 

There was. There are 2 ways to access the bitmap data. One by using the 
setpixel and getpixel functions. This is very slow. essentially every 
access to the pixel data requires a conversion to and from a color 
structure.

The other way is to access the buffer directly, hence the unsafe pointers.

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