From 4bba693cd5d8aa37d210d56127d5171692d83790 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebasti=C3=A1n=20Katzer?= <katzer.sebastian@googlemail.com>
Date: Wed, 13 Feb 2019 12:08:03 +0100
Subject: [PATCH] Safely set the copies property

---
 src/ios/APPPrinterInfo.m | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ios/APPPrinterInfo.m b/src/ios/APPPrinterInfo.m
index d056bc8..6c71b87 100644
--- a/src/ios/APPPrinterInfo.m
+++ b/src/ios/APPPrinterInfo.m
@@ -21,6 +21,8 @@
 
 #include "APPPrinterInfo.h"
 
+#import <objc/message.h>
+
 @implementation APPPrinterInfo
 
 #pragma mark -
@@ -71,7 +73,10 @@
         info.duplex = UIPrintInfoDuplexNone;
     }
 
-    [info setValue:[NSNumber numberWithLong:copies] forKey:@"_copies"];
+    if (class_getProperty(info.class, "copies"))
+    {
+        [info setValue:[NSNumber numberWithLong:copies] forKey:@"_copies"];
+    }
 
     if (jobName)
     {