stat = pgopen([device])
  stat = pgbeg([device, [nxsub, [nysub]]])

  pgask  [true|false]
  pgenv  xmin,xmax,ymin,ymax [,just, axis]

  pgline xarray, yarray
  pgpt   xarray, yarray [,symbol]
  pgpnts xarray, yarray, symarray

  pgbin  xarray, yarray [,center]
  pghist data, nbin [,range, flag]

  pgerrb dir, x, y, err [,tlen]
  pgerrx x1, x2, y [,tlen]
  pgerry x, y1, y2 [,tlen]

  pgcont map, cont [,tr]
  pgcons map, cont [,tr]
  pgconb map, cont [,blank, tr]
  pgconf map, cont_range [,tr]
  pgconl map, cont, label [,intval, minint, tr]

  pgimag array [,range, tr]
  pggray array [,range, tr]
  pgctab l, r,g,b [,contra,bright]
  pgpixl, array [,x1,x2,y1,y2]
  pgvect x, y [,scale, pos, tr, blank]

  value = pgqinf(item)
  type, descr, inter = pgqdt([ndev])

  curs = pgband( mode, [ xref, yref, [x, y, [posn]]])
  n = pgolin( x, y, [sym, [npt]] )
  n = pgncur( x, y, [sym, [npt]] )
  n = pglcur( x, y, [npt] )

  pgtick x1, y1, x2, y2, v, [str], {"tickl", "tickr", "disp", "orient"}
  pgaxis x1, y1, x2, y2, v1, v2,
         {"opt", "step", "nsub", "tickl", "tickr", "frac", "disp", "orient"}