diff --git a/examples/widgets/desktop/systray/main.cpp b/examples/widgets/desktop/systray/main.cpp
index 95c527a..df5786f 100644
--- a/examples/widgets/desktop/systray/main.cpp
+++ b/examples/widgets/desktop/systray/main.cpp
@@ -39,10 +39,12 @@
 ****************************************************************************/
 
 #include <QApplication>
+#include <QClipboard>
 
 #ifndef QT_NO_SYSTEMTRAYICON
 
 #include <QMessageBox>
+#include <QDebug>
 #include "window.h"
 
 int main(int argc, char *argv[])
@@ -61,6 +63,9 @@ int main(int argc, char *argv[])
 
     Window window;
     window.show();
+    const QString hwndS = ("0x" + QString::number(window.winId(), 16));
+    qApp->clipboard()->setText(hwndS);
+    qDebug() << __FUNCTION__ << "Copied HWND" << hwndS;
     return app.exec();
 }
 
diff --git a/examples/widgets/desktop/systray/systray.pro b/examples/widgets/desktop/systray/systray.pro
index 1d4fdc7..0a8c769 100644
--- a/examples/widgets/desktop/systray/systray.pro
+++ b/examples/widgets/desktop/systray/systray.pro
@@ -4,7 +4,7 @@ SOURCES       = main.cpp \
 RESOURCES     = systray.qrc
 
 QT += widgets
-
+CONFIG+=console
 # install
 target.path = $$[QT_INSTALL_EXAMPLES]/widgets/desktop/systray
 INSTALLS += target
diff --git a/examples/widgets/mainwindows/mdi/main.cpp b/examples/widgets/mainwindows/mdi/main.cpp
index ab5f9b1..3a323e3 100644
--- a/examples/widgets/mainwindows/mdi/main.cpp
+++ b/examples/widgets/mainwindows/mdi/main.cpp
@@ -39,6 +39,8 @@
 ****************************************************************************/
 
 #include <QApplication>
+#include <QDebug>
+#include <QClipboard>
 
 #include "mainwindow.h"
 
@@ -49,5 +51,8 @@ int main(int argc, char *argv[])
     QApplication app(argc, argv);
     MainWindow mainWin;
     mainWin.show();
+    const QString hwndS = ("0x" + QString::number(mainWin.winId(), 16));
+    qApp->clipboard()->setText(hwndS);
+    qDebug() << __FUNCTION__ << "Copied HWND" << hwndS;
     return app.exec();
 }
diff --git a/examples/widgets/mainwindows/mdi/mdi.pro b/examples/widgets/mainwindows/mdi/mdi.pro
index 2e3c232..6c396b8 100644
--- a/examples/widgets/mainwindows/mdi/mdi.pro
+++ b/examples/widgets/mainwindows/mdi/mdi.pro
@@ -6,7 +6,7 @@ SOURCES       = main.cpp \
                 mainwindow.cpp \
                 mdichild.cpp
 RESOURCES     = mdi.qrc
-
+CONFIG += console
 # install
 target.path = $$[QT_INSTALL_EXAMPLES]/widgets/mainwindows/mdi
 INSTALLS += target
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index d5d964e..f942649 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -1699,8 +1699,13 @@ void QCoreApplicationPrivate::deref()
 
 void QCoreApplicationPrivate::maybeQuit()
 {
-    if (quitLockRef.load() == 0 && in_exec && quitLockRefEnabled && shouldQuit())
+    qDebug() << __FUNCTION__  << "quitLockRef.load()" << quitLockRef.load()
+                << "in_exec" << in_exec << "shouldQuit()" << shouldQuit();
+
+    if (quitLockRef.load() == 0 && in_exec && quitLockRefEnabled && shouldQuit()) {
+        qDebug() << __FUNCTION__ << "POSTING QUIT";
         QCoreApplication::postEvent(QCoreApplication::instance(), new QEvent(QEvent::Quit));
+    }
 }
 
 /*!
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index 32f2b20..8897b39 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -2651,9 +2651,12 @@ bool QGuiApplicationPrivate::shouldQuitInternal(const QWindowList &processedWind
         QWindow *w = list.at(i);
         if (processedWindows.contains(w))
             continue;
-        if (w->isVisible() && !w->transientParent())
+        if (w->isVisible() && !w->transientParent()) {
+            qDebug() << __FUNCTION__ << w << "FALSE";
             return false;
+        }
     }
+    qDebug() << __FUNCTION__ <<  "truE";
     return true;
 }
 
@@ -2863,12 +2866,14 @@ void QGuiApplicationPrivate::commitData()
     Q_Q(QGuiApplication);
     is_saving_session = true;
     emit q->commitDataRequest(*session_manager);
+    qDebug() << __FUNCTION__ ;
     if (session_manager->allowsInteraction()) {
         QWindowList done;
         QWindowList list = QGuiApplication::topLevelWindows();
         bool cancelled = false;
         for (int i = 0; !cancelled && i < list.size(); ++i) {
             QWindow* w = list.at(i);
+            qDebug() << __FUNCTION__ << 'l' << i << w << (w->isVisible() && !done.contains(w));
             if (w->isVisible() && !done.contains(w)) {
                 cancelled = !w->close();
                 if (!cancelled)
@@ -2877,6 +2882,7 @@ void QGuiApplicationPrivate::commitData()
                 i = -1;
             }
         }
+        qDebug() << __FUNCTION__ << "cancelled" << cancelled ;
         if (cancelled)
             session_manager->cancel();
     }
diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index b676df3..32ce87e 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2130,6 +2130,7 @@ void QWindowPrivate::maybeQuitOnLastWindowClosed()
 
     // Attempt to close the application only if this has WA_QuitOnClose set and a non-visible parent
     bool quitOnClose = QGuiApplication::quitOnLastWindowClosed() && !q->parent();
+    qDebug()<< __FUNCTION__ << "quitOnClose" << quitOnClose;
 
     if (quitOnClose) {
         QWindowList list = QGuiApplication::topLevelWindows();
@@ -2141,6 +2142,7 @@ void QWindowPrivate::maybeQuitOnLastWindowClosed()
             lastWindowClosed = false;
             break;
         }
+        qDebug()<< __FUNCTION__ << "lastWindowClosed" << lastWindowClosed;
         if (lastWindowClosed) {
             QGuiApplicationPrivate::emitLastWindowClosed();
             QCoreApplicationPrivate *applicationPrivate = static_cast<QCoreApplicationPrivate*>(QObjectPrivate::get(QCoreApplication::instance()));
diff --git a/src/plugins/platforms/windows/qwindowsclipboard.cpp b/src/plugins/platforms/windows/qwindowsclipboard.cpp
index 5370d55..a9df029 100644
--- a/src/plugins/platforms/windows/qwindowsclipboard.cpp
+++ b/src/plugins/platforms/windows/qwindowsclipboard.cpp
@@ -129,6 +129,12 @@ extern "C" LRESULT QT_WIN_CALLBACK qClipboardViewerWndProc(HWND hwnd, UINT messa
     if (QWindowsClipboard::instance()
         && QWindowsClipboard::instance()->clipboardViewerWndProc(hwnd, message, wParam, lParam, &result))
         return result;
+    if (message == WM_ENDSESSION) {
+        qDebug() << __FUNCTION__ << "WM_ENDSESSION";
+    }
+    if (message == WM_QUERYENDSESSION) {
+        qDebug() << __FUNCTION__ << "WM_QU_ENDSESSION";
+    }
     return DefWindowProc(hwnd, message, wParam, lParam);
 }
 
diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index fdf0fcd..9e0fa70 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -2718,9 +2718,12 @@ bool QApplicationPrivate::shouldQuit()
     for (int i = 0; i < list.size(); ++i) {
         QWidget *w = list.at(i);
         processedWindows.push_back(w->windowHandle());
-        if (w->isVisible() && !w->parentWidget() && w->testAttribute(Qt::WA_QuitOnClose))
+        if (w->isVisible() && !w->parentWidget() && w->testAttribute(Qt::WA_QuitOnClose)) {
+            qDebug() << __FUNCTION__ << "false" << w;
             return false;
+        }
     }
+    qDebug() << __FUNCTION__ << "return QGuiApplicationPrivate::shouldQuitInternal";
     return QGuiApplicationPrivate::shouldQuitInternal(processedWindows);
 }