From b4b98c5d57d5608178dfc63a6e56911d22fcfb24 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Thu, 28 Mar 2024 18:20:38 +0100
Subject: macOS: Avoid possible crash in makeMainWindow when another win is
 modal

---
 src/Fl_cocoa.mm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index 718d04742..3829188a9 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -4544,7 +4544,7 @@ int Fl_Cocoa_Window_Driver::decorated_h()
 void Fl_Cocoa_Window_Driver::draw_titlebar_to_context(CGContextRef gc, int w, int h)
 {
   FLWindow *nswin = fl_xid(pWindow);
-  [nswin makeMainWindow];
+  if ([nswin canBecomeMainWindow]) [nswin makeMainWindow];
   [NSApp nextEventMatchingMask:NSEventMaskAny untilDate:nil inMode:NSDefaultRunLoopMode dequeue:NO];
   CGImageRef img;
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
-- 
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