From 989926cb7f8ed61e52785e1deb4d82f39c269b55 Mon Sep 17 00:00:00 2001
From: ts-korhonen <teemu.s.korhonen@gmail.com>
Date: Thu, 10 Mar 2022 23:14:13 +0200
Subject: [PATCH] qt: Disable processing of alt-f4 in windows.

Prevents the alt-f4 from quiting 86Box.
---
 src/qt/qt_mainwindow.cpp        |  5 +++++
 src/qt/qt_winrawinputfilter.cpp | 12 +++++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/qt/qt_mainwindow.cpp b/src/qt/qt_mainwindow.cpp
index 0c1d88fb8..9eb0bb455 100644
--- a/src/qt/qt_mainwindow.cpp
+++ b/src/qt/qt_mainwindow.cpp
@@ -437,6 +437,11 @@ MainWindow::MainWindow(QWidget *parent) :
 }
 
 void MainWindow::closeEvent(QCloseEvent *event) {
+    if (mouse_capture) {
+        event->ignore();
+        return;
+    }
+
     if (confirm_exit && confirm_exit_cmdl && cpu_thread_run)
     {
         QMessageBox questionbox(QMessageBox::Icon::Question, "86Box", tr("Are you sure you want to exit 86Box?"), QMessageBox::Yes | QMessageBox::No, this);
diff --git a/src/qt/qt_winrawinputfilter.cpp b/src/qt/qt_winrawinputfilter.cpp
index 9b86d2af4..1e5ec5a71 100644
--- a/src/qt/qt_winrawinputfilter.cpp
+++ b/src/qt/qt_winrawinputfilter.cpp
@@ -116,13 +116,19 @@ bool WindowsRawInputFilter::nativeEventFilter(const QByteArray &eventType, void
     {
         MSG *msg = static_cast<MSG *>(message);
 
-        if (msg->message == WM_INPUT)
-        {
+        if (msg->message == WM_INPUT) {
             if (window->isActiveWindow() && menus_open == 0)
-                handle_input((HRAWINPUT)msg->lParam);
+                handle_input((HRAWINPUT) msg->lParam);
 
             return true;
         }
+
+        /* Stop processing of Alt-F4 */
+        if (msg->message == WM_SYSKEYDOWN) {
+            if (msg->wParam == 0x73) {
+                return true;
+            }
+        }
     }
 
     return false;