From 4813571666ef111ce9fddb9ef8abc6b98e295cd4 Mon Sep 17 00:00:00 2001
From: lucasmerlin <hi@lucasmerlin.me>
Date: Wed, 9 Jul 2025 12:40:46 +0200
Subject: [PATCH] Don't restore window settings if they were fullscreen on
 macos

---
 crates/egui-winit/src/window_settings.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/crates/egui-winit/src/window_settings.rs b/crates/egui-winit/src/window_settings.rs
index d15712d4c..6592a39f8 100644
--- a/crates/egui-winit/src/window_settings.rs
+++ b/crates/egui-winit/src/window_settings.rs
@@ -60,6 +60,13 @@ impl WindowSettings {
         mut viewport_builder: ViewportBuilder,
     ) -> ViewportBuilder {
         profiling::function_scope!();
+        // On MacOS with an external monitor, if the window starts fullscreen,
+        // the top area is not clickable. See https://github.com/rust-windowing/winit/issues/4295
+        let top_area_not_clickable_workaround =
+            cfg!(target_os = "macos") && !cfg!(feature = "accesskit");
+        if top_area_not_clickable_workaround && self.fullscreen {
+            return viewport_builder;
+        }
 
         // `WindowBuilder::with_position` expects inner position in Macos, and outer position elsewhere
         // See [`winit::window::WindowBuilder::with_position`] for details.