nirab_25
1st November 2010, 13:06
Hi ....
I am adding QgraphicsItem in scene and it works fine in the application... but when i change mouse position to switch another application in taskbar then crashes....
but i dont understand why & from where the problem is happening...
here is debug tracer....
0 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d396f5
1 QApplication::notify qapplication.cpp 3798 0x01d37012
2 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
3 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
4 QGraphicsScenePrivate::sendEvent qgraphicsscene.cpp 1207 0x022d525f
5 QGraphicsScene::sendEvent qgraphicsscene.cpp 5673 0x022e3a3b
6 QGraphicsItem::sceneEvent qgraphicsitem.cpp 6718 0x022b9eae
7 QGraphicsScenePrivate::sendEvent qgraphicsscene.cpp 1211 0x022d5297
8 QGraphicsScene::sendEvent qgraphicsscene.cpp 5673 0x022e3a3b
9 QGraphicsScene::event qgraphicsscene.cpp 3508 0x022dbdbe
10 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
11 QApplication::notify qapplication.cpp 3798 0x01d37012
12 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
13 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
14 QGraphicsView::viewportEvent qgraphicsview.cpp 2765 0x022fa541
15 QAbstractScrollAreaPrivate::viewportEvent qabstractscrollarea_p.h 100 0x023e6a13
16 QAbstractScrollAreaFilter::eventFilter qabstractscrollarea_p.h 116 0x023e506c
17 QCoreApplicationPrivate::sendThroughObjectEventFil ters qcoreapplication.cpp 847 0x6a1ffc73
18 QApplicationPrivate::notify_helper qapplication.cpp 4392 0x01d396e5
19 QApplication::notify qapplication.cpp 4361 0x01d39586
20 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
21 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
22 QWidget::event qwidget.cpp 8443 0x01d84ce8
23 QFrame::event qframe.cpp 557 0x020fe6bc
24 QAbstractScrollArea::event qabstractscrollarea.cpp 996 0x0218be88
25 QGraphicsView::event qgraphicsview.cpp 2739 0x022fa37b
26 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
27 QApplication::notify qapplication.cpp 4361 0x01d39586
28 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
29 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
30 QWidget::event qwidget.cpp 8443 0x01d84ce8
31 QGroupBox::event qgroupbox.cpp 397 0x020ff5fe
32 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
33 QApplication::notify qapplication.cpp 4361 0x01d39586
34 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
35 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
36 QWidget::event qwidget.cpp 8443 0x01d84ce8
37 QMainWindow::event qmainwindow.cpp 1417 0x0211d23a
38 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
39 QApplication::notify qapplication.cpp 4361 0x01d39586
40 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
41 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 218 0x023ad53e
42 QApplication::setActiveWindow qapplication.cpp 2549 0x01d34956
43 QtWndProc@16 qapplication_win.cpp 1993 0x01d9bba0
44 USER32!GetDC C:\WINDOWS\system32\user32.dll 0 0x7e418734
45 USER32!GetDC C:\WINDOWS\system32\user32.dll 0 0x7e418734
46 ?? 0 0x001702ca
47 ?? qwidget.h 487 0x0000001c
48 USER32!GetDC C:\WINDOWS\system32\user32.dll 0 0x7e418816
49 qt_is_translatable_mouse_event qapplication_win.cpp 1426 0x01d99fa5
50 USER32!DefWindowProcW C:\WINDOWS\system32\user32.dll 0 0x7e428ea0
51 ?? 0 0x00000000
I am adding QgraphicsItem in scene and it works fine in the application... but when i change mouse position to switch another application in taskbar then crashes....
but i dont understand why & from where the problem is happening...
here is debug tracer....
0 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d396f5
1 QApplication::notify qapplication.cpp 3798 0x01d37012
2 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
3 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
4 QGraphicsScenePrivate::sendEvent qgraphicsscene.cpp 1207 0x022d525f
5 QGraphicsScene::sendEvent qgraphicsscene.cpp 5673 0x022e3a3b
6 QGraphicsItem::sceneEvent qgraphicsitem.cpp 6718 0x022b9eae
7 QGraphicsScenePrivate::sendEvent qgraphicsscene.cpp 1211 0x022d5297
8 QGraphicsScene::sendEvent qgraphicsscene.cpp 5673 0x022e3a3b
9 QGraphicsScene::event qgraphicsscene.cpp 3508 0x022dbdbe
10 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
11 QApplication::notify qapplication.cpp 3798 0x01d37012
12 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
13 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
14 QGraphicsView::viewportEvent qgraphicsview.cpp 2765 0x022fa541
15 QAbstractScrollAreaPrivate::viewportEvent qabstractscrollarea_p.h 100 0x023e6a13
16 QAbstractScrollAreaFilter::eventFilter qabstractscrollarea_p.h 116 0x023e506c
17 QCoreApplicationPrivate::sendThroughObjectEventFil ters qcoreapplication.cpp 847 0x6a1ffc73
18 QApplicationPrivate::notify_helper qapplication.cpp 4392 0x01d396e5
19 QApplication::notify qapplication.cpp 4361 0x01d39586
20 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
21 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
22 QWidget::event qwidget.cpp 8443 0x01d84ce8
23 QFrame::event qframe.cpp 557 0x020fe6bc
24 QAbstractScrollArea::event qabstractscrollarea.cpp 996 0x0218be88
25 QGraphicsView::event qgraphicsview.cpp 2739 0x022fa37b
26 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
27 QApplication::notify qapplication.cpp 4361 0x01d39586
28 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
29 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
30 QWidget::event qwidget.cpp 8443 0x01d84ce8
31 QGroupBox::event qgroupbox.cpp 397 0x020ff5fe
32 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
33 QApplication::notify qapplication.cpp 4361 0x01d39586
34 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
35 QCoreApplication::sendEvent qcoreapplication.h 215 0x023ad592
36 QWidget::event qwidget.cpp 8443 0x01d84ce8
37 QMainWindow::event qmainwindow.cpp 1417 0x0211d23a
38 QApplicationPrivate::notify_helper qapplication.cpp 4396 0x01d39706
39 QApplication::notify qapplication.cpp 4361 0x01d39586
40 QCoreApplication::notifyInternal qcoreapplication.cpp 732 0x6a1ff9dc
41 QCoreApplication::sendSpontaneousEvent qcoreapplication.h 218 0x023ad53e
42 QApplication::setActiveWindow qapplication.cpp 2549 0x01d34956
43 QtWndProc@16 qapplication_win.cpp 1993 0x01d9bba0
44 USER32!GetDC C:\WINDOWS\system32\user32.dll 0 0x7e418734
45 USER32!GetDC C:\WINDOWS\system32\user32.dll 0 0x7e418734
46 ?? 0 0x001702ca
47 ?? qwidget.h 487 0x0000001c
48 USER32!GetDC C:\WINDOWS\system32\user32.dll 0 0x7e418816
49 qt_is_translatable_mouse_event qapplication_win.cpp 1426 0x01d99fa5
50 USER32!DefWindowProcW C:\WINDOWS\system32\user32.dll 0 0x7e428ea0
51 ?? 0 0x00000000