From 1176bdb0b0ab49c4d591821d2c89b1d3932c35cd Mon Sep 17 00:00:00 2001
From: Holger Vogt <holger.vogt@uni-due.de>
Date: Thu, 10 Jun 2021 16:44:55 +0200
Subject: [PATCH] Bug: Plot window switching did not change the plot content.
 Enable plotting the current graph to svg or ps by selecting the graph from
 the current plot window.

---
 src/frontend/wdisp/windisp.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/frontend/wdisp/windisp.c b/src/frontend/wdisp/windisp.c
index 684d3155a..607dd0c7e 100644
--- a/src/frontend/wdisp/windisp.c
+++ b/src/frontend/wdisp/windisp.c
@@ -281,12 +281,14 @@ static int LType(int ColorIndex)
 /* called by SystemMenue / Postscript hardcopy */
 static LRESULT HcpyPlotPS(HWND hwnd)
 {
-    NG_IGNORE(hwnd);
     int i = 1;
+    GRAPH* tmpgr = currentgraph;
+    currentgraph = pGraph(hwnd);
     cp_vset("hcopydevtype", CP_STRING, "postscript");
     /* If not set, the color will be b&w, i = 1 is white background */
     cp_vset("hcopypscolor", CP_NUM, &i);
     com_hardcopy(NULL);
+    currentgraph = tmpgr;
     /* update the text in the main window */
     UpdateMainText();
     SetFocus(swString);
@@ -297,9 +299,11 @@ static LRESULT HcpyPlotPS(HWND hwnd)
 /* called by SystemMenue / SVG hardcopy */
 static LRESULT HcpyPlotSVG(HWND hwnd)
 {
-    NG_IGNORE(hwnd);
+    GRAPH* tmpgr = currentgraph;
+    currentgraph = pGraph(hwnd);
     cp_vset("hcopydevtype", CP_STRING, "svg");
     com_hardcopy(NULL);
+    currentgraph = tmpgr;
     /* update the text in the main window */
     UpdateMainText();
     SetFocus(swString);