SWI-Prolog -- visible/1

Documentation
- Reference manual
  - Built-in Predicates
    - Debugging and Tracing Programs
      - trace/0
      - tracing/0
      - notrace/0
      - notrace/1
      - debug/0
      - nodebug/0
      - debugging/0
      - spy/1
      - nospy/1
      - nospyall/0
      - leash/1
      - visible/1
      - unknown/2
      - style_check/1
- Packages

Availability:built-in

Source

visible(+Ports)

Set the ports shown by the debugger. See leash/1 for a description of the Ports specification. Default is full.