From 6d7b97c7a0acebf9b9179dfdc62749c8bbf2f125 Mon Sep 17 00:00:00 2001
From: ceylo <ceylo@4e206d99-4929-0410-ac5d-dfc041789085>
Date: Sun, 4 Apr 2010 18:30:46 +0000
Subject: [PATCH] Fixed NSException raised when using Cocoa windows after the
 SFML window has been closed.

git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/trunk@1482 4e206d99-4929-0410-ac5d-dfc041789085
---
 src/SFML/Window/Cocoa/GLKit.mm | 39 +++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/src/SFML/Window/Cocoa/GLKit.mm b/src/SFML/Window/Cocoa/GLKit.mm
index f19fa77f..fd990c10 100644
--- a/src/SFML/Window/Cocoa/GLKit.mm
+++ b/src/SFML/Window/Cocoa/GLKit.mm
@@ -549,25 +549,26 @@
 		[myWindow release];
 		myWindow = [aWindow retain];
 		
-		// Set the new observers
-		// We want to know when our window got the focus
-		[nc addObserver:self
-			   selector:@selector(windowDidBecomeMain:)
-				   name:NSWindowDidBecomeMainNotification
-				 object:[self window]];
-		
-		// We want to know when our window lost the focus
-		[nc addObserver:self
-			   selector:@selector(windowDidResignMain:)
-				   name:NSWindowDidResignMainNotification
-				 object:[self window]];
-		
-		// We want to know when the user closes the window
-		[nc addObserver:self
-			   selector:@selector(windowWillClose:)
-				   name:NSWindowWillCloseNotification
-				 object:[self window]];
-		
+		if (myWindow) {
+			// Set the new observers
+			// We want to know when our window got the focus
+			[nc addObserver:self
+				   selector:@selector(windowDidBecomeMain:)
+					   name:NSWindowDidBecomeMainNotification
+					 object:[self window]];
+			
+			// We want to know when our window lost the focus
+			[nc addObserver:self
+				   selector:@selector(windowDidResignMain:)
+					   name:NSWindowDidResignMainNotification
+					 object:[self window]];
+			
+			// We want to know when the user closes the window
+			[nc addObserver:self
+				   selector:@selector(windowWillClose:)
+					   name:NSWindowWillCloseNotification
+					 object:[self window]];
+		}
 	}
 }