GOL - GUI Object Library: Open Source Crossplatform library for development GUI applications and not only in C++. Compatible with ObjectWidows by Borland and allows quick and easy port existing projects to GOL. It will include Library and IDE Designed to
GObjects is an excellent framework, compatible with OWLNext. Created by the creator of OWLNext Yura Bidus. You can use migrate your OWL applications to GObjects or to OWLNext.