Bitmaps in OpenGL?

Can anyone explain what glPixelStorei does?

ex: glPixelStorei pxsUnpackAlignment, 2

I assume it has some influence on the format of a Bitmap used by OpenGL, but I don’t know how to use it.

Use google, or go look at this:- http://fly.cc.fer.hr/~unreal/theredbook/

Thanks for the site knackered.

No problem