Save and Love PCX, GIF or BMP

Hallo!

I need some procedures to load and save PCX, GIF or BMP files.
These procedures must support modes like:
  320x240x256
  640x480x256
  800x600x256
  1024x768x256

Please indicate me a place where I could fine such procedures or simply send
them to my e-mail adress: jean-claude.fi...@cn.educ.lu

FISHBYTE