in_pce_thread/1

Documentation
- Reference manual
  - Multithreaded applications
    - Multithreading and the XPCE graphics system
      - in_pce_thread/1
      - in_pce_thread_sync/1
- Packages

[det]in_pce_thread(:Goal)

This call gives any Prolog thread the opportunity to run calls in the XPCE thread. A call to in_pce_thread/1 succeeds immediately, copying Goal to the XPCE thread. Goal is added to the XPCE event queue and executed synchronous to normal user events like typing, clicking and XPCE timers.