From 20329514c528cce5dccd64939d29039e57b3deaf Mon Sep 17 00:00:00 2001
From: MrBlock <65095293+kzootech@users.noreply.github.com>
Date: Mon, 12 Dec 2022 06:44:36 -0500
Subject: [PATCH] Fix bug #7563 where menus and tooltips are not visible in
 fullscreen mode on windows systems. (#8027)

* Fix bug where menus and tooltips are not visible in fullscreen mode on windows systems.
---
 src/Gui/MainWindow.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/Gui/MainWindow.cpp b/src/Gui/MainWindow.cpp
index 6eb4a37cd8..53862b8656 100644
--- a/src/Gui/MainWindow.cpp
+++ b/src/Gui/MainWindow.cpp
@@ -53,6 +53,10 @@
 # include <QPushButton>
 #endif
 
+#if defined(Q_OS_WIN)
+# include <QtPlatformHeaders/QWindowsWindowFunctions>
+#endif
+
 #include <App/Application.h>
 #include <App/Document.h>
 #include <App/DocumentObject.h>
@@ -1464,6 +1468,12 @@ void MainWindow::loadWindowSettings()
         this->restoreState(config.value(QString::fromLatin1("MainWindowState")).toByteArray());
     }
     std::clog << "Main window restored" << std::endl;
+
+// make menus and tooltips usable in fullscreen under Windows, see issue #7563
+#if defined(Q_OS_WIN)
+    QWindowsWindowFunctions::setHasBorderInFullScreen(this->windowHandle(), true);
+#endif
+
     bool max = config.value(QString::fromLatin1("Maximized"), false).toBool();
     max ? showMaximized() : show();