From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 8 Jul 2015 20:46:52 -0400
Subject: Initial commit

---
 sys/gio/gks/gqclip.x | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 sys/gio/gks/gqclip.x

(limited to 'sys/gio/gks/gqclip.x')

diff --git a/sys/gio/gks/gqclip.x b/sys/gio/gks/gqclip.x
new file mode 100644
index 00000000..5694b353
--- /dev/null
+++ b/sys/gio/gks/gqclip.x
@@ -0,0 +1,40 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<gset.h>
+include	"gks.h"
+
+# GQCLIP -- Inquire value of clipping flag
+
+procedure gqclip (errind, iclip, iar)
+
+int	errind			# Error indicator
+int	iclip			# Clipping flag - returned value
+real	iar[4]			# Clipping array 
+
+int	gstati()
+include	"gks.com"
+
+begin
+	# Until I know what this argument is, set iar to full viewport.  
+	# Consulting with NCAR was not enlightning.  This argument (iar) 
+	# is not documented in the GKS level 0A standard.
+	iar[1] = 0.0
+	iar[2] = 1.0
+	iar[3] = 0.0
+	iar[4] = 1.0
+
+	if (gk_std == NULL) {
+	    # GKS not in proper state; no active workstations
+	    errind = 7
+	    iclip = -1
+	    return
+	} else
+	    errind = 0
+
+	iferr {
+	    iclip = gstati (gp[gk_std], G_CLIP)
+	} then {
+	    errind = 1
+	    iclip = -1
+	}
+end
-- 
cgit