I don't care about using TK or GTK this is not a post about GTK or TK go to the julia-dev , What i need is to understand how to change a Pixel somewhere on my screen.
I need to caclculate all pixels color one by one then display the screen (all the screen). I don't even need a windows (but maybe i have to)! I am trying to understand cairo source code but i need help. I don't know if the part i need is inside cairo or inside tk. Just how to put a color somewhere on the screen. Thanks you very mutch.
