I thank you both for your replies.
Did not find the answer on the forum yet, but now I can proceed in the uGFX-direction (THANKS JOEL and others).
I will publish my developments at writing a 'low-level' board driver (in my case a Picadillo 35T from 4D-systems), but consider this:
I always programmed in assembly at the 8051 etc, now started with microchip PIC in C and at the moment I am looking at the C++ language.
So it will take some time before I can show something, and maybe it will not be written like as pro's do, but I will defintily try my best.
Looking at the forum's replies. I am not alone in this world!
Regards to all