[Qt-interest] Adding widget to QGraphicsView

[Yuvaraj R]

Thank you very Much..

Because my careless ,i faced bugs..\

I Corrected by

 initializing the object in Constructor..

label = new QLabel;

Thanks

Yuvaraj R
On Wed, Jul 22, 2009 at 8:20 PM, Srdjan Todorovic <
todorovic.s at googlemail.com> wrote:

> Hi,
>
> On 22/07/2009, Yuvaraj R <yuvaraj at ongobiz.com> wrote:
> > I declared the the Qlabel ,QlineEdit as private in Class..
> >
> > if use the label apart from the constrcutor application crashing..
>
> > QLabel *label = new QLabel();
>
> This is local to the constructor?
> Falls out of scope soon...
>
> > void Widget::show_message1()
> >
> > {
> >
> > QMessageBox::information(0,"",QString("yuvaraj"));
> >
> > label->hide();
>
> BANG!
> Class member pointer 'label' is not initialised at this point.
>
> > }
>
> Do you understand the concept of scope?
>
> If yes
> {
>   fix your code
> }
>
> else
>   find and read a good C/C++ book
>
> You did not run a debugger to discover that label is not a valid pointer.
>
> Srdjan
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