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Qt-interest Archive, May 2008
Application crash with Qt 4.4.0


Message 1 in thread

After I move my project to Qt 4.4.0 I have sometimes error with such 
stacktrace:

QWidget::effectiveWinId()
qt_x11_enforce_cursor()
QWidgetPrivate::create_sys()
QWidget::create()
QWidget::setVisible()
QDialog::setVisible()
QDialog::exec()

But this error acquire only sometimes but often!
Can somebody help with this problem?

Thank you!

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Message 2 in thread

On Wednesday 21 May 2008 13:07:47 alexondi wrote:
> After I move my project to Qt 4.4.0 I have sometimes error with such
> stacktrace:
>
> QWidget::effectiveWinId()
> qt_x11_enforce_cursor()
> QWidgetPrivate::create_sys()
> QWidget::create()
> QWidget::setVisible()
> QDialog::setVisible()
> QDialog::exec()
>
> But this error acquire only sometimes but often!
> Can somebody help with this problem?
>
> Thank you!

Can you show us a testcase please, to reproduce the problem?
I guess you're using windows/msvc?
Unfortunatly i can only read gdb backtraces. (bad habit, yeah... :P )

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Message 3 in thread

Looks like its probably X11 based ...

But without code to reproduce its gonna be pretty hard to help the OP

Scott

> -----Original Message-----
> From: Arvid Ephraim Picciani [mailto:aep@xxxxxxxxxxxxxxx]
> Sent: Wednesday, May 21, 2008 1:15 PM
> To: qt-interest@xxxxxxxxxxxxx
> Subject: Re: Application crash with Qt 4.4.0
> 
> On Wednesday 21 May 2008 13:07:47 alexondi wrote:
> > After I move my project to Qt 4.4.0 I have sometimes error with such
> > stacktrace:
> >
> > QWidget::effectiveWinId()
> > qt_x11_enforce_cursor()
> > QWidgetPrivate::create_sys()
> > QWidget::create()
> > QWidget::setVisible()
> > QDialog::setVisible()
> > QDialog::exec()
> >
> > But this error acquire only sometimes but often!
> > Can somebody help with this problem?
> >
> > Thank you!
> 
> Can you show us a testcase please, to reproduce the problem?
> I guess you're using windows/msvc?
> Unfortunatly i can only read gdb backtraces. (bad habit, yeah... :P )
> 
> --
> best regards/Mit freundlichen Grüßen
> Arvid Ephraim Picciani
> 
> --
> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with
> "unsubscribe" in the subject or the body.
> List archive and information: http://lists.trolltech.com/qt-interest/

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Message 4 in thread

Please reply to the list.

So your saying a dialog called with exec crashes, but with show it
works?

Scott


> -----Original Message-----
> From: Perepelica Alexander [mailto:alexondi@xxxxxxxxxx]
> Sent: Wednesday, May 21, 2008 1:45 PM
> To: Scott Aron Bloom
> Subject: RE: Application crash with Qt 4.4.0
> 
> The biggest problem is that I can't reproduce it in simple
test-project.
> And I my programe I have many threads and use dual monitor system (I
> think problem is in this ).
> But  when I call show() for forms in which I become this error - then
> problem is gone.
> I try to reproduce - If I don't do this I go back to 4.3 :((

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Message 5 in thread

PLEASE STOP RESPONSING TO ME DIRECTLY

I have never had your bug come up... Check your code, I doubt it's a QT
issue

> -----Original Message-----
> From: Perepelica Alexander [mailto:alexondi@xxxxxxxxxx]
> Sent: Wednesday, May 21, 2008 1:55 PM
> To: Scott Aron Bloom
> Subject: RE: Application crash with Qt 4.4.0
> 
> YEEES!!! before I call exec I call show and then all is ok

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Message 6 in thread



  --- the forwarded message follows ---
--- Begin Message ---
--- Begin Message ---
Please reply to the list.

So your saying a dialog called with exec crashes, but with show it
works?

Scott


> -----Original Message-----
> From: Perepelica Alexander [mailto:alexondi@xxxxxxxxxx]
> Sent: Wednesday, May 21, 2008 1:45 PM
> To: Scott Aron Bloom
> Subject: RE: Application crash with Qt 4.4.0
> 
> The biggest problem is that I can't reproduce it in simple
test-project.
> And I my programe I have many threads and use dual monitor system (I
> think problem is in this ).
> But  when I call show() for forms in which I become this error - then
> problem is gone.
> I try to reproduce - If I don't do this I go back to 4.3 :((

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 [ signature omitted ] 

--- End Message ---