Here are the classes, structs, unions and interfaces with brief descriptions:
| QActive | Base class for derivation of application-level active object classes |
| QEP | Provides miscellaneous QEP services |
| QEQueue | Native QF Event Queue class |
| QEvent | QEvent base class |
| QF | QF services |
| QFreeBlock | Structure representing a free block in the Native QF Memory Pool |
| QFsm | Finite State Machine base class |
| QHsm | Hierarchical State Machine base class |
| QK | QK services |
| QMPool | Native QF memory pool class |
| QPSet64 | Priority Set of up to 64 elements for building various schedulers, but also useful as a general set of up to 64 elements of any kind |
| QPSet8 | Priority Set of up to 8 elements for building various schedulers, but also useful as a general set of up to 8 elements of any kind |
| QS | Quantum Spy logging facilities |
| QSubscrList | Subscriber List class |
| QTimeEvt | Time Event class |