Is there any way to load GIF image into my program? I dont wont to write a lot of code lines to do this. I would rather use a free library that supports all kind of GIF formats. Is there any possibiliti to do this?

Many many years ago I had a book called SVGA Graphics Programming. It had GIF-loading code in a diskette.
Sure there are, have you tired google-search?

Hiya... Just done a search, came up with this...
http://www.radix.net/~cknudsen/Ilib/

It can apparently (haven''t tried it) load and save these formats...
PPM
XPM
GIF <---Woohoo!
PNG
JPG