make copy of array.

6 years ago · 142a41b386
1 changed files with 3 additions and 2 deletions
--- a/native/Avalonia.Native/src/OSX/window.mm
+++ b/native/Avalonia.Native/src/OSX/window.mm
@ -1078,11 +1078,12 @@ NSArray* AllLoopModes = [NSArray arrayWithObjects: NSDefaultRunLoopMode, NSEvent

 +(void)closeAll
 {
-    auto numWindows = [[NSApp windows] count];
+    NSArray<NSWindow*>* windows = [NSArray arrayWithArray:[NSApp windows]];
+    auto numWindows = [windows count];
    
    for(int i = 0; i < numWindows; i++)
    {
-        [[[NSApp windows] objectAtIndex:i] performClose:nil];
+        [[windows objectAtIndex:i] performClose:nil];
    }
 }