From 2714c7600eba1c6ec6c35d2b87f69ef2c0db8c73 Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Tue, 1 Nov 2016 16:38:37 +0000
Subject: [PATCH] MacOS: fix crash when closing a fullscreen window - continued

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@12068 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/Fl_cocoa.mm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 89c13f63c..d12103126 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -1317,6 +1317,8 @@ static FLWindowDelegate *flwindowdelegate_instance = nil;
 - (void)windowDidResize:(NSNotification *)notif
 {
   FLWindow *nsw = (FLWindow*)[notif object];
+  if (![nsw isVisible]) return;
+  fl_lock_function();
   Fl_Window *window = [nsw getFl_Window];
   NSRect r; NSPoint pt2;
   r = [[nsw contentView] frame];