**CIGAL Reference Manual, Chapter 4 (lpt): **
===== LPT100, LPT101, LPT102 -- Integer variables controlling parallel port I/O =====
**usage:  lptXXX = value**

LPT100, LPT101, and LPT102 are integer variables associated with the parallel input/output port on your computer.
To enable these variables you must first initialize the parallel port device ([[jvs:cigal:manual:chapter2:initialize|init]], [[jvs:cigal:manual:chapter7:pport|pport]]). Changing the value of these registers results in an immediate change in the
operating parameters of the associated port.

**See Also:**\\
[[jvs:cigal:manual:chapter2:initialize|init]],
[[jvs:cigal:manual:chapter7:pport|pport]]

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