Rotating a Bitmap by an arbitrary angle

Can anyone give me a pointer as to a good technique that can be used to display a rectangular Bitmap on a form rotated though an arbitray angle? (ie not necessarily 90,180,270 degrees).

I know how to do the maths, I just need to know the process...

Do I really need to copy the Bitmap into Memory and then transform it pixel by pixel? I'm hoping that I don't. I'm also hoping to avoid calling non-managed code (I've seen examples of how to do it in C/C++). I would like to do it all in C#.

Any pointers appreciated. I'm sure someone here has done this before.

oops!! Seemed I just needed to RTFM. ;) Will post the answer here when I have it.

Just to point you in the right direction:

MSDN Article: Graphics.RotateTransform Method (Single)
(with a simple example)
:)

Thanks, I'll check it out. I did find another example and managed to get it working. But I'll certainly compare it with this one....

OK.
Would you like to share your approach here? Maybe you've used the transform matrix directly?

I will soon, I'm still refactoring!!