Dear Dalton,
I know about FLTK 1.4. The problem is building with it:
1. It is not included in major distributives/repositories (like, Ubuntu, Debian sid and so on). So, I couldn't link it easy.
2. Direct build from sources produce errors in CMake files (at least for v.1.4.2). So, I can only link it directly which is not so good, since I need to "destroy" my cmake for that and will need to repair it back after including in a distributive,
Another reason is that my attempt to use FLTK 1.4.1 with other project
cause some issues/errors (which were absent at v.1.3.*) and I haven't enough
time right now to test and bypass it.
So, I prefer to wait a bit. Or you can send me compile log with errors and warnings and I'll try to rewrite code for its excluding.