gtk:print-settings-printer-lpi (settings)

settings -- a gtk:print-settings object
lpi -- a number coerced to a double float with the resolution in lpi (lines per inch)

Accessor of "printer-lpi" of a print setting. The resolution in lpi (lines per inch). The gtk:print-settings function gets the value of "print-lpi". The (setf gtk:print-settings-printer-lpi) function sets the values of "printer-lpi".