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QFileDialog crash

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MattPhillips

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  • "MattPhillips" started this thread

Posts: 20

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1

Tuesday, June 8th 2010, 4:18pm

QFileDialog crash

Hello,

Once in awhile, unpredictably, my program crashes (generates a Software Exception) when I click on a menu item that opens a QFileDialog. The QFileDialog is called almost immediately within the menu item slot:

Source code

 
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void peMainWin::on_qactLoadPars_triggered()
{
   QString qsdir = my_get_directory_function();
   QString qsParFile = QFileDialog::getOpenFileName(this,
                                    	"Load parameter file",
                                    	qsdir,
                                    	"*.myext"
                                    	);
...
}


The stack trace below (see lines in red) indicates that the problem arises from the getOpenFileName() call. I've tried this using gibberish for qsdir, but the problem doesn't arise--it just opens to the home directory. So bad output from my_get_directory_function() doesn't seem like it's the problem. Does anyone know what could be going on? Thank you--

Matt

Stack trace in QtCreator (gcc on a Mac):

Quoted

0 __CFRunLoopCollectSources0 0 0x9192108e
1 __CFSetApplyFunction_block_invoke_1 0 0x9191f9c9
2 CFBasicHashApply 0 0x9190486a
3 CFSetApplyFunction 0 0x9191f991
4 __CFRunLoopDoSources0 0 0x9191dccf
5 __CFRunLoopRun 0 0x9191bc1f
6 CFRunLoopRunSpecific 0 0x9191b0f4
7 CFRunLoopRunInMode 0 0x9191af21
8 RunCurrentEventLoopInMode 0 0x9520c0fc
9 ReceiveNextEventCommon 0 0x9520beb1
10 _AcquireNextEvent 0 0x953941d4
11 _RunAppModalLoop 0 0x9538a337
12 RunAppModalLoopForWindow 0 0x9538a738
13 -[NSApplication _realDoModalLoop:peek:] 0 0x905af112
14 -[NSApplication runModalForWindow:] 0 0x905ae79d
15 -[NSSavePanel runModal] 0 0x90842379
16 -[NSNavOpenPanel run] 0 0x90a1c63b
17 _NSNavDialogRun 0 0x90a1e1ef
18 QFileDialogPrivate::_q_macRunNativeAppModalPanel 0 0x001d0d6f
19 QFileDialog::qt_metacall 0 0x006fc9fd
20 QMetaObject::activate 0 0x00ecc22a
21 QSingleShotTimer::timeout 0 0x00fb90e2
22 QSingleShotTimer::timerEvent 0 0x00fb917c
23 QObject::event 0 0x00fb2e28
24 QApplicationPrivate::notify_helper 0 0x001f3a6f
25 QApplication::notify 0 0x001f9d25
26 QCoreApplication::notifyInternal 0 0x00ec69c2
27 qt_sendSpontaneousEvent 0 0x001f3b8c
28 QEventDispatcherMacPrivate::activateTimer 0 0x001a0e11
29 __CFRunLoopRun 0 0x9191d76b
30 CFRunLoopRunSpecific 0 0x9191b0f4
31 CFRunLoopRunInMode 0 0x9191af21
32 RunCurrentEventLoopInMode 0 0x9520c0fc
33 ReceiveNextEventCommon 0 0x9520bded
34 ReceiveNextEvent 0 0x95394287
35 QEventDispatcherMac::processEvents 0 0x001a1359
36 QEventLoop::processEvents 0 0x00fa43a1
37 QEventLoop::exec 0 0x00fa45cd
38 QDialog::exec 0 0x006eaaac
39 QFileDialog::getOpenFileName 0 0x006ff3e5
40 peMainWin::on_qactLoadPars_triggered 0 0x00016989
41 peMainWin::qt_metacall 0 0x000e743d
42 QMetaObject::activate 0 0x00ecc22a
43 QAction::triggered 0 0x001ec1b4
44 QAction::activate 0 0x001ee46f
45 qt_mac_activate_action 0 0x001cd029
46 qt_mac_menu_event 0 0x001cd689
47 DispatchEventToHandlers 0 0x951df0a9
48 SendEventToEventTargetInternal 0 0x951de370
49 SendEventToEventTarget 0 0x95200b55
50 SendHICommandEvent 0 0x9522d147
51 SendMenuCommandWithContextAndModifiers 0 0x95251e40
52 SendMenuItemSelectedEvent 0 0x95251df5
53 FinishMenuSelection 0 0x95251cfa
54 MenuSelectCore 0 0x95221436
55 MenuSelect 0 0x953d399f
56 QApplicationPrivate::globalEventProcessor 0 0x0018c59a
57 DispatchEventToHandlers 0 0x951df0a9
58 SendEventToEventTargetInternal 0 0x951de370
59 SendEventToEventTarget 0 0x95200b55
60 ToolboxEventDispatcherHandler 0 0x952126db
61 DispatchEventToHandlers 0 0x951df4fa
62 SendEventToEventTargetInternal 0 0x951de370
63 SendEventToEventTarget 0 0x95200b55
64 QEventDispatcherMac::processEvents 0 0x001a1474
65 QEventLoop::processEvents 0 0x00fa43a1
66 QEventLoop::exec 0 0x00fa45cd
67 QCoreApplication::exec 0 0x00fa692e
68 main 0 0x0000823a