From 4c2d4ded7461b330046c6d900d29097a767f2a22 Mon Sep 17 00:00:00 2001
From: Jonathan White <support@dmapps.us>
Date: Sat, 28 Dec 2024 00:08:35 -0500
Subject: [PATCH] Prevent AltGr showing the menubar on Windows

* Fixes #11549
---
 src/gui/MainWindow.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/gui/MainWindow.cpp b/src/gui/MainWindow.cpp
index 20872d82a5..871ab62085 100644
--- a/src/gui/MainWindow.cpp
+++ b/src/gui/MainWindow.cpp
@@ -2190,6 +2190,15 @@ bool MainWindowEventFilter::eventFilter(QObject* watched, QEvent* event)
 #endif
     } else if (eventType == QEvent::KeyRelease && watched == mainWindow) {
         auto keyEvent = dynamic_cast<QKeyEvent*>(event);
+#ifdef Q_OS_WIN
+        // Windows translates AltGr into CTRL + ALT, this breaks using AltGr when the menubar is hidden
+        // Prevent this by activating the ALT cooldown to ignore the next key event which will be an ALT key
+        if (keyEvent->key() == Qt::Key_Control && keyEvent->modifiers() == Qt::AltModifier
+            && config()->get(Config::GUI_HideMenubar).toBool()) {
+            m_altCoolDown.start();
+            return false;
+        }
+#endif
         if (keyEvent->key() == Qt::Key_Alt && !keyEvent->modifiers() && config()->get(Config::GUI_HideMenubar).toBool()
             && !m_altCoolDown.isActive()) {
             auto menubar = mainWindow->m_ui->menubar;