[Solved]Closing window error

[ranger0]

Folks,

I´m working at a muilti-window program and a want to close a child window in case of a specific error.

Let me show you a piece of code:

@
...
switch (erro.number())
{
case 1205:
mostraerro("Este registro está sendo editado por outro usuário no momento. Aguarde a finalização para"
" acessar o registro.",janela->parentWidget());
this->close();
break;
default:
mostraerro(erro.text(),janela);
}
...
@

The "this->close();" statement is called before myapp->exec();
This window still is running.

I´ve tryed:
@
delete this; //Whole application crashes
QApplication::sendEvent(this,new QEvent(QEvent::Close)) //Nothing happens
QApplication::sendEvent(this,new QEvent(QEvent::Quit)) //Nothing happens
QApplication::sendEvent(this->parent(),new QEvent(QEvent::Close)) //Whole application crashes
QApplication::sendEvent(this->parent,new QEvent(QEvent::Close)) //Whole application crashes
QApplication::quit() //Nothing happens
QApplication::close() //Nothing happens
@

Any idea of how could I prevent this window of been opened?

Best regards.

[ranger0]

Problem solved using:
@
this->setAttribute(Qt::WA_QuitOnClose);
QApplication::postEvent(this, new QEvent(QEvent::Close),Qt::HighEventPriority);
@

Regards.