TBX is a library from Alan Buckley, designed to help with the development of Toolbox-based applications for RISC OS using C++. The library comes with a user guide and reference documentation, and as well as the library itself, there are additional downloads available featuring examples of the library in use, including a program to help produce skeleton projects.
OSLib! OSLib! OSLib! Oi! Oi! Oi!
The release of OSLib 7.00 was announced in December by John Tytgat, who said:
On behalf of the entire OSLib development team, I’m happy to announce the immediate availability of OSLib 7.00, an Open Source API for RISC OS development.