Thread 3 (Thread 0x7fffdd49c700 (LWP 30008)):
#0  0x00007ffff5653901 in __GI___poll (fds=0x7fffd8002de0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff3f71169 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007ffff3f7127c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007ffff69c347f in QEventDispatcherGlib::processEvents (this=0x7fffd8000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x7fffd8000b30
        canWait = true
        savedFlags = {i = 0}
        result = <optimised out>
#4  0x00007ffff6968e3a in QEventLoop::exec (this=this@entry=0x7fffdd49be40, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
        d = 0x7fffd8003670
        locker = {val = 6948112}
        ref = {d = 0x7fffd8003670, locker = @0x7fffdd49bdc8, exceptionCaught = true}
#5  0x00007ffff67883ca in QThread::exec (this=<optimised out>) at thread/qthread.cpp:515
        d = 0x6a04a0
        locker = {val = 6948112}
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6e224c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b15700 <qt_meta_stringdata_QObject>, data = 0x7ffff6b155e0 <qt_meta_data_QObject>, static_metacall = 0x7ffff69a12a0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7fffd8003670}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b18380 <qt_meta_stringdata_Qt>, data = 0x7ffff6b15820 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff6e1aa00 <QObject::staticMetaObject>, stringdata = 0x7ffff6b102e0 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff6b10280 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6968b30 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimised out>
#6  0x00007fffefa24e45 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
No symbol table info available.
#7  0x00007ffff678d29d in QThreadPrivate::start (arg=0x7fffefc97d60) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7ffff678c330 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x7fffefc97d60, __do_it = 1, __cancel_type = <optimised out>}
        thr = 0x7fffefc97d60
        data = 0x6a9680
#8  0x00007ffff62257fc in start_thread (arg=0x7fffdd49c700) at pthread_create.c:465
        pd = 0x7fffdd49c700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140736905987840, -589466473423298412, 140737488347182, 140737488347183, 140736905987840, 140736905988544, 589533734747381908, 589451590551347348}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#9  0x00007ffff565fb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 2 (Thread 0x7fffec0a3700 (LWP 30007)):
#0  0x00007ffff5653901 in __GI___poll (fds=0x7fffec0a2d78, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007ffff10f2747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#2  0x00007ffff10f453a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
No symbol table info available.
#3  0x00007ffff0118f09 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
No symbol table info available.
#4  0x00007ffff678d29d in QThreadPrivate::start (arg=0x6474a0) at thread/qthread_unix.cpp:368
        __clframe = {__cancel_routine = 0x7ffff678c330 <QThreadPrivate::finish(void*)>, __cancel_arg = 0x6474a0, __do_it = 1, __cancel_type = <optimised out>}
        thr = 0x6474a0
        data = 0x628a30
#5  0x00007ffff62257fc in start_thread (arg=0x7fffec0a3700) at pthread_create.c:465
        pd = 0x7fffec0a3700
        now = <optimised out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140737153480448, -589466473423298412, 140737488346382, 140737488346383, 140737153480448, 140737153481152, 589429808886849684, 589451590551347348}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007ffff565fb0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
No locals.

Thread 1 (Thread 0x7ffff7fa5b80 (LWP 30003)):
#0  0x00007ffff6f33e71 in QWindow::winId() const () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#1  0x00007fffeac1b1db in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlasmaPlatformTheme.so
No symbol table info available.
#2  0x00007fffeac1b77d in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platformthemes/KDEPlasmaPlatformTheme.so
No symbol table info available.
#3  0x00007ffff784aedb in QMenuBarPrivate::handleReparent (this=this@entry=0x900c60) at widgets/qmenubar.cpp:1360
        newParent = <optimised out>
        newWindow = 0x7fffffffe3f8
        newParents = {d = 0x7cebb0}
#4  0x00007ffff784ba68 in QMenuBar::eventFilter (this=0x8ae600, object=0x8f0830, event=0x7fffffffd320) at widgets/qmenubar.cpp:1460
No locals.
#5  0x00007ffff696aacc in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x8f0830, event=event@entry=0x7fffffffd320) at kernel/qcoreapplication.cpp:1129
        obj = <optimised out>
        i = 1
#6  0x00007ffff76e5445 in QApplicationPrivate::notify_helper (this=this@entry=0x626000, receiver=receiver@entry=0x8f0830, e=e@entry=0x7fffffffd320) at kernel/qapplication.cpp:3713
        consumed = <optimised out>
#7  0x00007ffff76ecd34 in QApplication::notify (this=0x7fffffffe430, receiver=0x8f0830, e=0x7fffffffd320) at kernel/qapplication.cpp:3476
        w = 0x8f0830
        extra = <optimised out>
        isProxyWidget = <optimised out>
        res = false
#8  0x00007ffff696ade8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x8f0830, event=event@entry=0x7fffffffd320) at kernel/qcoreapplication.cpp:1018
        selfRequired = true
        result = false
        cbdata = {0x8f0830, 0x7fffffffd320, 0x7fffffffd27f}
        d = <optimised out>
        threadData = 0x626170
        scopeLevelCounter = {threadData = 0x626170}
#9  0x00007ffff772717a in QCoreApplication::sendEvent (event=0x7fffffffd320, receiver=0x8f0830) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
No locals.
#10 QWidget::setParent (this=this@entry=0x8f0830, parent=parent@entry=0x90a620, f=...) at kernel/qwidget.cpp:10644
        e = {_vptr.QEvent = 0x7ffff6e22710 <vtable for QEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b111e0 <qt_meta_stringdata_QEvent>, data = 0x7ffff6b10c20 <qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t = 21, posted = 0, spont = 0, m_accept = 1, reserved = 8191}
        oldtlw = 0x8f0830
        newParent = <optimised out>
        oldBsTracker = <optimised out>
        useStyleSheetPropagationInWidgetStyles = <optimised out>
#11 0x00007ffff7727eb8 in QWidget::setParent (this=this@entry=0x8f0830, parent=parent@entry=0x90a620) at kernel/qwidget.cpp:10498
        parent = 0x90a620
        this = 0x8f0830
#12 0x00007ffff770211e in QLayout::addChildWidget (this=this@entry=0xa6b620, w=w@entry=0x8f0830) at kernel/qlayout.cpp:919
        mw = 0x90a620
        pw = 0x0
        needShow = <optimised out>
#13 0x00007ffff77021bf in QLayout::addWidget (this=0xa6b620, w=0x8f0830) at kernel/qlayout.cpp:228
No locals.
#14 0x00007ffff783014c in QMdiSubWindow::setWidget (this=this@entry=0x90a620, widget=widget@entry=0x8f0830) at widgets/qmdisubwindow.cpp:2330
        layout = <optimised out>
        isWindowModified = <optimised out>
#15 0x00007ffff7823e33 in QMdiArea::addSubWindow (this=<optimised out>, widget=0x8f0830, windowFlags=...) at widgets/qmdiarea.cpp:1992
        childFocus = 0x0
        child = 0x90a620
#16 0x00000000004041f4 in MainWindow::MainWindow(QWidget*)::$_0::operator()() const (this=0x7fffe4008010) at /home/darren/Documents/Development/QMdiMainWindowCrash/mainwindow.cpp:15
        subWindow = 0x74004d
#17 0x0000000000404159 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, MainWindow::MainWindow(QWidget*)::$_0>::call(MainWindow::MainWindow(QWidget*)::$_0&, void**) (f=..., arg=0x7fffffffd6f0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:130
No locals.
#18 0x0000000000404131 in QtPrivate::Functor<MainWindow::MainWindow(QWidget*)::$_0, 0>::call<QtPrivate::List<>, void>(MainWindow::MainWindow(QWidget*)::$_0&, void*, void**) (f=..., arg=0x7fffffffd6f0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobjectdefs_impl.h:240
No locals.
#19 0x00000000004040dd in QtPrivate::QFunctorSlotObject<MainWindow::MainWindow(QWidget*)::$_0, 0, QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (which=1, this_=0x7fffe4008000, r=0x71e3e0, a=0x7fffffffd6f0, ret=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject_impl.h:168
No locals.
#20 0x00007ffff69999ff in QtPrivate::QSlotObjectBase::call (a=0x7fffffffd6f0, r=0x71e3e0, this=0x7fffe4008000) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
No locals.
#21 QMetaObject::activate (sender=sender@entry=0x71e3e0, signalOffset=<optimised out>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffd6f0) at kernel/qobject.cpp:3749
        obj = {d = 0x7fffe4008000}
        receiver = 0x71e3e0
        receiverInSameThread = <optimised out>
        sw = {receiver = 0x71e3e0, previousSender = 0x0, currentSender = {sender = 0x71e3e0, signal = 4, ref = 1}, switched = true}
        c = 0x7fffd80170e0
        last = 0x7fffd80170e0
        locker = {val = 140737335431568}
        connectionLists = {connectionLists = 0x815670}
        list = <optimised out>
        currentThreadId = 0x7ffff7fa5b80
        signal_index = 4
        empty_argv = {0x0}
#22 0x00007ffff6999fb7 in QMetaObject::activate (sender=sender@entry=0x71e3e0, m=m@entry=0x7ffff7da5de0 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffffffd6f0) at kernel/qobject.cpp:3628
No locals.
#23 0x00007ffff76ded82 in QAction::triggered (this=this@entry=0x71e3e0, _t1=<optimised out>) at .moc/moc_qaction.cpp:371
        _a = {0x0, 0x7fffffffd6ec}
#24 0x00007ffff76e146c in QAction::activate (this=0x71e3e0, event=<optimised out>) at kernel/qaction.cpp:1159
No locals.
#25 0x00007ffff78a2afb in QAbstractButtonPrivate::click (this=0x7d9ae0) at widgets/qabstractbutton.cpp:393
        changeState = <optimised out>
#26 0x00007ffff78a2d54 in QAbstractButton::mouseReleaseEvent (this=0x898720, e=0x7fffffffdbd0) at widgets/qabstractbutton.cpp:1006
No locals.
#27 0x00007ffff788208a in QToolButton::mouseReleaseEvent (this=<optimised out>, e=<optimised out>) at widgets/qtoolbutton.cpp:616
No locals.
#28 0x00007ffff7725dc8 in QWidget::event (this=0x898720, event=0x7fffffffdbd0) at kernel/qwidget.cpp:9178
No locals.
#29 0x00007ffff78a3f1b in QAbstractButton::event (this=this@entry=0x898720, e=e@entry=0x7fffffffdbd0) at widgets/qabstractbutton.cpp:964
No locals.
#30 0x00007ffff7882124 in QToolButton::event (this=0x898720, event=0x7fffffffdbd0) at widgets/qtoolbutton.cpp:982
No locals.
#31 0x00007ffff76e546c in QApplicationPrivate::notify_helper (this=this@entry=0x626000, receiver=receiver@entry=0x898720, e=e@entry=0x7fffffffdbd0) at kernel/qapplication.cpp:3717
        consumed = <optimised out>
#32 0x00007ffff76ed28f in QApplication::notify (this=<optimised out>, receiver=0x898720, e=0x7fffffffdbd0) at kernel/qapplication.cpp:3193
        me = <incomplete type>
        w = 0x898720
        mouse = 0x7fffffffdbd0
        eventAccepted = <optimised out>
        relpos = {xp = 20, yp = 9}
        pw = {wp = {d = 0x800260, value = 0x898720}}
        res = false
#33 0x00007ffff696ade8 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x898720, event=event@entry=0x7fffffffdbd0) at kernel/qcoreapplication.cpp:1018
        selfRequired = true
        result = false
        cbdata = {0x898720, 0x7fffffffdbd0, 0x7fffffffda2f}
        d = <optimised out>
        threadData = 0x626170
        scopeLevelCounter = {threadData = 0x626170}
#34 0x00007ffff76ec262 in QCoreApplication::sendEvent (event=<optimised out>, receiver=<optimised out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
No locals.
#35 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x898720, event=event@entry=0x7fffffffdbd0, alienWidget=alienWidget@entry=0x898720, nativeWidget=0x7fffffffe3f8, buttonDown=buttonDown@entry=0x7ffff7dd47c0 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2699
        receiverGuard = {wp = {d = 0x800260, value = 0x898720}}
        nativeGuard = {wp = {d = 0x6ed650, value = 0x7fffffffe3f8}}
        alienGuard = {wp = {d = 0x800260, value = 0x898720}}
        activePopupWidget = {wp = {d = 0x0, value = 0x0}}
        widgetUnderMouse = <optimised out>
        wasLeaveAfterRelease = true
        result = <optimised out>
#36 0x00007ffff774094b in QWidgetWindow::handleMouseEvent (this=this@entry=0x6ea290, event=event@entry=0x7fffffffdfd0) at kernel/qwidgetwindow.cpp:621
        translated = <incomplete type>
        contextMenuTrigger = QEvent::MouseButtonPress
        widget = 0x898720
        mapped = {xp = 20, yp = 9}
        receiver = 0x898720
#37 0x00007ffff7742fba in QWidgetWindow::event (this=0x6ea290, event=0x7fffffffdfd0) at kernel/qwidgetwindow.cpp:243
        event = 0x7fffffffdfd0
        this = 0x6ea290
#38 0x00007ffff76e546c in QApplicationPrivate::notify_helper (this=this@entry=0x626000, receiver=receiver@entry=0x6ea290, e=e@entry=0x7fffffffdfd0) at kernel/qapplication.cpp:3717
        consumed = <optimised out>
#39 0x00007ffff76ecd34 in QApplication::notify (this=0x7fffffffe430, receiver=0x6ea290, e=0x7fffffffdfd0) at kernel/qapplication.cpp:3476
        w = 0x6ea290
        extra = <optimised out>
        isProxyWidget = <optimised out>
        res = false
#40 0x00007ffff696ade8 in QCoreApplication::notifyInternal2 (receiver=0x6ea290, event=0x7fffffffdfd0) at kernel/qcoreapplication.cpp:1018
        selfRequired = true
        result = false
        cbdata = {0x6ea290, 0x7fffffffdfd0, 0x7fffffffde9f}
        d = <optimised out>
        threadData = 0x626170
        scopeLevelCounter = {threadData = 0x626170}
#41 0x00007ffff6f29f43 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#42 0x00007ffff6f2ba25 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#43 0x00007ffff6f03cab in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
No symbol table info available.
#44 0x00007ffff017b5a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
No symbol table info available.
#45 0x00007ffff3f70fb7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#46 0x00007ffff3f711f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#47 0x00007ffff3f7127c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#48 0x00007ffff69c347f in QEventDispatcherGlib::processEvents (this=0x68dd50, flags=...) at kernel/qeventdispatcher_glib.cpp:423
        d = 0x69a030
        canWait = true
        savedFlags = {i = 0}
        result = <optimised out>
#49 0x00007ffff6968e3a in QEventLoop::exec (this=this@entry=0x7fffffffe380, flags=..., flags@entry=...) at kernel/qeventloop.cpp:212
        d = 0x8f0ec0
        locker = {val = 6447744}
        ref = {d = 0x8f0ec0, locker = @0x7fffffffe308, exceptionCaught = true}
#50 0x00007ffff6971da4 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1291
        threadData = 0x626170
        eventLoop = {<QObject> = {_vptr.QObject = 0x7ffff6e224c8 <vtable for QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b15700 <qt_meta_stringdata_QObject>, data = 0x7ffff6b155e0 <qt_meta_data_QObject>, static_metacall = 0x7ffff69a12a0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x8f0ec0}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b18380 <qt_meta_stringdata_Qt>, data = 0x7ffff6b15820 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff6e1aa00 <QObject::staticMetaObject>, stringdata = 0x7ffff6b102e0 <qt_meta_stringdata_QEventLoop>, data = 0x7ffff6b10280 <qt_meta_data_QEventLoop>, static_metacall = 0x7ffff6968b30 <QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        returnCode = <optimised out>
#51 0x0000000000403b81 in main (argc=1, argv=0x7fffffffe538) at /home/darren/Documents/Development/QMdiMainWindowCrash/main.cpp:11
        a = {<QGuiApplication> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7ffff757c200 <QGuiApplication::staticMetaObject>, stringdata = 0x7ffff7a58840 <qt_meta_stringdata_QApplication>, data = 0x7ffff7a586c0 <qt_meta_data_QApplication>, static_metacall = 0x7ffff76ea400 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
        w = {<QMainWindow> = {<QWidget> = {<QObject> = {_vptr.QObject = 0x60a900 <vtable for MainWindow+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b15700 <qt_meta_stringdata_QObject>, data = 0x7ffff6b155e0 <qt_meta_data_QObject>, static_metacall = 0x7ffff69a12a0 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x6aeb00}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff6b18380 <qt_meta_stringdata_Qt>, data = 0x7ffff6b15820 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, <QPaintDevice> = {<No data fields>}, static staticMetaObject = {d = {superdata = 0x7ffff6e1aa00 <QObject::staticMetaObject>, stringdata = 0x7ffff7a5c300 <qt_meta_stringdata_QWidget>, data = 0x7ffff7a5bc20 <qt_meta_data_QWidget>, static_metacall = 0x7ffff7724c60 <QWidget::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, data = 0x6aec30}, static staticMetaObject = {d = {superdata = 0x7ffff7da79c0 <QWidget::staticMetaObject>, stringdata = 0x7ffff7a78e00 <qt_meta_stringdata_QMainWindow>, data = 0x7ffff7a78c20 <qt_meta_data_QMainWindow>, static_metacall = 0x7ffff7812f50 <QMainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x7ffff7daf3d0 <qt_meta_extradata_QMainWindow>, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff7daf3a0 <QMainWindow::staticMetaObject>, stringdata = 0x4085b0 <qt_meta_stringdata_MainWindow>, data = 0x408560 <qt_meta_data_MainWindow>, static_metacall = 0x407cb0 <MainWindow::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_ui = {_M_t = {_M_t = {<std::_Tuple_impl<0, Ui::MainWindow*, std::default_delete<Ui::MainWindow> >> = {<std::_Tuple_impl<1, std::default_delete<Ui::MainWindow> >> = {<std::_Head_base<1, std::default_delete<Ui::MainWindow>, true>> = {<std::default_delete<Ui::MainWindow>> = {<No data fields>}, <No data fields>}, <No data fields>}, <std::_Head_base<0, Ui::MainWindow*, false>> = {_M_head_impl = 0x6e6d20}, <No data fields>}, <No data fields>}}}}