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diff --git a/sys/gio/gstatr.x b/sys/gio/gstatr.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<syserr.h>
+include	<mach.h>
+include	<gset.h>
+include	<gio.h>
+
+# GSTATR -- Get any GIO parameter of type integer or real.  Integer values are
+# silently coerced to real if the actual parameter value is integer.
+
+real procedure gstatr (gp, param)
+
+pointer	gp			# graphics descriptor
+int	param			# parameter to be set
+
+real	char_height
+int	wcs, axes, field, ax[2], i
+pointer	w, p, pl, pm, tx, fa
+real	ggetr()
+
+begin
+	# Compute pointers to substructures once, here, to save space later.
+	wcs = GP_WCS(gp)
+	w   = GP_WCSPTR(gp,wcs)
+	pl  = GP_PLAP(gp)
+	pm  = GP_PMAP(gp)
+	tx  = GP_TXAP(gp)
+	fa  = GP_FAAP(gp)
+
+	switch (param) {
+
+	# General GIO parameters.
+
+	case G_FD:
+	    return (GP_FD(gp))
+	case G_TTY:
+	    return (GP_TTY(gp))
+	case G_WCS:
+	    return (GP_WCS(gp))
+	case G_CURSOR:
+	    return (GP_CURSOR(gp))
+
+	# These parameters affect the current WCS.
+
+	case G_XTRAN:
+	    return (WCS_XTRAN(w))
+	case G_YTRAN:
+	    return (WCS_YTRAN(w))
+	case G_CLIP:
+	    return (and (WCS_FLAGS(w), WF_CLIP))
+	case G_RASTER:
+	    return (WF_RASTER (WCS_FLAGS(w)))
+
+	# Default marker sizes (NDC coords).
+
+	case G_SZMARKER1:
+	    return (GP_SZMARKER(gp,1))
+	case G_SZMARKER2:
+	    return (GP_SZMARKER(gp,2))
+	case G_SZMARKER3:
+	    return (GP_SZMARKER(gp,3))
+	case G_SZMARKER4:
+	    return (GP_SZMARKER(gp,4))
+
+	# Polyline attributes.
+
+	case G_PLTYPE:
+	    return (PL_LTYPE(pl))
+	case G_PLWIDTH:
+	    return (PL_WIDTH(pl))
+	case G_PLCOLOR:
+	    return (PL_COLOR(pl))
+
+	# Polymarker attributes.
+
+	case G_PMLTYPE:
+	    return (PM_LTYPE(pm))
+	case G_PMWIDTH:
+	    return (PM_WIDTH(pm))
+	case G_PMCOLOR:
+	    return (PM_COLOR(pm))
+
+	# Text drawing attributes.
+
+	case G_TXUP:
+	    return (TX_UP(tx))
+	case G_TXSIZE:
+	    return (TX_SIZE(tx))
+	case G_TXPATH:
+	    return (TX_PATH(tx))
+	case G_TXSPACING:
+	    return (TX_SPACING(tx))
+	case G_TXHJUSTIFY:
+	    return (TX_HJUSTIFY(tx))
+	case G_TXVJUSTIFY:
+	    return (TX_VJUSTIFY(tx))
+	case G_TXFONT:
+	    return (TX_FONT(tx))
+	case G_TXQUALITY:
+	    return (TX_QUALITY(tx))
+	case G_TXCOLOR:
+	    return (TX_COLOR(tx))
+
+	# Fill area attributes.
+
+	case G_FASTYLE:
+	    return (FA_STYLE(fa))
+	case G_FACOLOR:
+	    return (FA_COLOR(fa))
+
+	# Axis labelling parameters affecting more than one axis.
+
+	case G_DRAWTITLE:
+	    return (GP_DRAWTITLE(gp))
+	case G_TITLESIZE:
+	    return (GP_TITLESIZE(gp))
+	case G_TITLECOLOR:
+	    return (GP_TITLECOLOR(gp))
+	case G_NTITLELINES:
+	    return (GP_NTITLELINES(gp))
+	case G_FRAMECOLOR:
+	    return (GP_FRAMECOLOR(gp))
+	case G_ASPECT:
+	    return (GP_ASPECT(gp))
+
+	case G_CHARSIZE:
+	    # Return the current character size in NDC units.
+
+	    char_height = ggetr (gp, "ch")
+	    if (char_height < EPSILON)
+		char_height = DEF_CHARHEIGHT
+	    return (char_height * TX_SIZE(tx))
+
+	default:
+	    # The GLABAX parameters for the X and Y axes may be set separately
+	    # for each axis or simultaneously for both.  The parameter codes
+	    # are encoded as 100 (X only) 200 (Y only) or 300 (both) plus the
+	    # code for the field in the lower digits.
+
+	    if (param < FIRST_GLABAX_PARAM || param > LAST_GLABAX_PARAM)
+		call syserr (SYS_GSTAT)
+
+	    axes = param / 100
+	    field = mod (param, 100) + 300
+
+	    ax[1] = 0
+	    ax[2] = 0
+	    if (axes == 1 || axes == 3)
+		ax[1] = YES
+	    if (axes == 2 || axes == 3)
+		ax[2] = YES
+
+	    do i = 1, 2 {
+		if (ax[i] == YES) {
+		    if (i == 1)
+			p = GP_XAP(gp)
+		    else
+			p = GP_YAP(gp)
+
+		    switch (field) {
+		    case G_DRAWAXES:
+			return (GL_DRAWAXES(p))
+		    case G_SETAXISPOS:
+			return (GL_SETAXISPOS(p))
+		    case G_AXISPOS1:
+			return (GL_AXISPOS1(p))
+		    case G_AXISPOS2:
+			return (GL_AXISPOS2(p))
+		    case G_DRAWGRID:
+			return (GL_DRAWGRID(p))
+		    case G_GRIDCOLOR:
+			return (GL_GRIDCOLOR(p))
+		    case G_ROUND:
+			return (GL_ROUND(p))
+		    case G_LABELAXIS:
+			return (GL_LABELAXIS(p))
+		    case G_AXISLABELSIZE:
+			return (GL_AXISLABELSIZE(p))
+		    case G_AXISLABELCOLOR:
+			return (GL_AXISLABELCOLOR(p))
+		    case G_DRAWTICKS:
+			return (GL_DRAWTICKS(p))
+		    case G_LABELTICKS:
+			return (GL_LABELTICKS(p))
+		    case G_NMAJOR:
+			return (GL_NMAJOR(p))
+		    case G_NMINOR:
+			return (GL_NMINOR(p))
+		    case G_MAJORLENGTH:
+			return (GL_MAJORLENGTH(p))
+		    case G_MINORLENGTH:
+			return (GL_MINORLENGTH(p))
+		    case G_MAJORWIDTH:
+			return (GL_MAJORWIDTH(p))
+		    case G_MINORWIDTH:
+			return (GL_MINORWIDTH(p))
+		    case G_AXISWIDTH:
+			return (GL_AXISWIDTH(p))
+		    case G_AXISCOLOR:
+			return (GL_AXISCOLOR(p))
+		    case G_TICKLABELSIZE:
+			return (GL_TICKLABELSIZE(p))
+		    case G_TICKLABELCOLOR:
+			return (GL_TICKLABELCOLOR(p))
+		    case G_TICKCOLOR:
+			return (GL_TICKCOLOR(p))
+		    # case G_TICKFORMAT:
+			# not a real parameter
+		    default:
+			call syserr (SYS_GSTAT)
+		    }
+		}
+	    }
+	}
+end