From 7104746413c6327d82340dede4abd06bb65f9032 Mon Sep 17 00:00:00 2001
From: ManoloFLTK <41016272+ManoloFLTK@users.noreply.github.com>
Date: Tue, 11 Jun 2024 15:04:48 +0200
Subject: Fix crash in howto-drag-and-drop under macOS

---
 src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/drivers/Quartz')

diff --git a/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx b/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
index 00fc63150..5091f894b 100644
--- a/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
+++ b/src/drivers/Quartz/Fl_Quartz_Image_Surface_Driver.cxx
@@ -31,7 +31,8 @@ Fl_Quartz_Image_Surface_Driver::Fl_Quartz_Image_Surface_Driver(int w, int h, int
   if (high_res) {
     s = Fl_Graphics_Driver::default_driver().scale();
     Fl_Window *cw = Fl_Window::current();
-    if (cw && Fl_Cocoa_Window_Driver::driver(cw)->mapped_to_retina()) s *= 2;
+    Fl_Cocoa_Window_Driver *dr = cw ? Fl_Cocoa_Window_Driver::driver(cw) : NULL;
+    if (dr && dr->mapped_to_retina()) s *= 2;
     W *= s; H *= s;
   }
   CGColorSpaceRef lut = CGColorSpaceCreateDeviceRGB();
-- 
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