OpenGL Question

I'm trying to pre-process display lists (in OpenGL) and save to memory to help loading time as an exercise for when I develop for handhelds. How do I serialize the contents of a generated list?

Also, does anybody know a good DirectX/OpenGL wrapper?

My official OpenGL programming guide says this:

Some graphics hardware may store display lists in dedicated memory or may store the data in an optimised form that is more compatible with the graphics hardware or software.

This implies that the data of display lists is in some implementation-dependent form. Since the OpenGL API is at its heart an interface, I don't think they'd let you do something that would so blatantly expose underlying details like that.