prhvrules Object from a Plot-Ready or Plotted TableExtract the prHvrules object from a plot-ready or plotted table.
This is an internal function, not intended to be called by package users.
hvrules(x, enabledOnly=TRUE)A prHvrules object, containing plot-ready hvrules for a table, or
NULL if none have been defined.
A plot-ready (prTable) or plotted (pltdTable) table object.
Logical. If TRUE, only the subset of table hvrules that are enabled is extracted.