Any tutorials?

Hello.

I’m fairly new in QNX but eager and still learning ;)
I already wrote some simple apps using graphics framework (gf), some process spawning and communication, but still can’t find any useful docs for some low-level font rendering as shown in font-test app (i mean without Photon).
Does anyone have some useful links, books, tutorials or examples for FontFusion and such things? In fact - every useful help or guide would be great.

Thanks for any help.

Regards,
l_jez