[Qt-interest] QThread problem

[prashant bhutani]

Hi,

Thanks.
But with due respect, this is what I am reading everywhere that connecting
signal with Qt::QueuedConnection will help me out.
But I am not able to sort out how it will happen!!!!!!
I have read the documentation and reading every other link it is guiding me
to
but still I am not able to get that* connect which signal to my method???*
The method setting table is *void getProcessInfo(void)* and
it contains QTableWidget* widget now I am calling this method
from my run() method in other/child thread and it is where I am
getting the error that " *QObject::setParent: Cannot set parent, new parent
in a different thread*".

PS :: This is my first time with QThread and trying to sort things out but I
am not able to get enough help even from googling and spent my last two days
in reading the documentation only.

Prashant Bhutani


On Wed, Nov 3, 2010 at 4:48 PM, Gopalakrishna Bhat <gopalakbhat at gmail.com>wrote:

> Hi,
>
> You cannot access or modify any of the widget in the main GUI thread
> from any other thread. You can emit a signal in your thread and
> connect it to a method in the main GUI thread which then does the
> updation.
>
> With regards,
> Gopalakrishna Bhat
>
>
> >
> > Hi Everyone,
> >
> > I am trying to build the System Monitor (similar to one in Linux which is
> in
> > GTK) in Qt as my OS lab project.
> > I have done everything needed but now I am stuck with to update it
> > periodically with the processes running on the system.
> > To do so, I thought to implement QThread in my application but since the
> > main Thread (GUI thread) is always running, I am not able to modify the
> > QTableWidget* widget which is used to show the processes in tabular form.
> > Whenever I run my application, in child thread, I got the output that "
> > Prashant Bhutani
> >
> > _______________________________________________
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> > Qt-interest at trolltech.com
> > http://lists.trolltech.com/mailman/listinfo/qt-interest
> >
> >
>
>
>
> --
> My blog http://gkbhat.blogspot.com
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