Bitmap files ( .bmp )

I'm doing some project and I need help. ;) How can I input .bmp file and transfer it to binary matrix in C / C++ ? File will have only black and white pixels. And after I finish processing binary matrix how can I output .bmp file ?

Tnx in advance, Aleksandar.

http://en.wikipedia.org/wiki/BMP_file_format
Malo kasnim... par godina :)

Do sad je naso verovatno :D