deleting a widget

[john_god]

I have this code:

void MainWindow::on_actionSomeButton_triggered()
{
    QWidgetDerivedClass *wid = new QWidgetDerivedClass ;
    wid->show();
}

void MainWindow::on_actionSomeButton_triggered()
{
    QWidgetDerivedClass *wid = new QWidgetDerivedClass ;
    wid->show();
}

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If I create the widget with Qt::WA_DeleteOnClose, this will free the memory allocated with new operator, when the user closes the widget? If not, to free the memory, is it valid to do:

QWidgetDerivedClass::~QWidgetDerivedClass()
{
     delete this;
}

QWidgetDerivedClass::~QWidgetDerivedClass()
{
     delete this;
}

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Just want to make share I'm not leaking memory.

[high_flyer]

Well the docs states that:

Makes Qt delete this widget when the widget has accepted the close event (see QWidget::closeEvent()).

and for closeEvent():

This event handler is called with the given event when Qt receives a window close request for a top-level widget from the window system.

So, if this a top level widget you are talking about (it looks like it) then yes, Qt takes care of deleting it.