show message when setting SetOverrideCursor()

lincoln

I have the following code, a message is displayed when setting setOverrideCursor (), my problem is that the message box does not close in the time indicated in singleShot (), I have to click on the button to close it.
my question is how can I make the message box close automatically.

void Widget::on_pushButton_4_clicked()
{
  QGuiApplication::setOverrideCursor(Qt::WaitCursor);
  QMessageBox* box=new QMessageBox;
  box->setText("Creating the backup, please wait.");
  box->setWindowTitle(qApp->applicationName());
  box->setIcon(QMessageBox::Information);
  box->setAttribute(Qt::WA_DeleteOnClose);
  box->exec();
  QTimer::singleShot(1000,this,&QGuiApplication::restoreOverrideCursor);
}

Cobra91151

@lincoln

Hello!

Your code works but need just some adjustments. Please check out my code and the screenshot below:

void Widget::on_pushButton_4_clicked()
{
    QApplication::setOverrideCursor(Qt::WaitCursor);
    QMessageBox *box = new QMessageBox(this);
    box->setText("Creating the backup, please wait.");
    box->setWindowTitle(qApp->applicationName());
    box->setIcon(QMessageBox::Information);
    box->setAttribute(Qt::WA_DeleteOnClose);
    QTimer::singleShot(1000, this, [box, this]() {
        box->close();
        box->deleteLater();
        QApplication::restoreOverrideCursor();
    });
    box->exec();
}

Result:

In the lambda QTimer::singleShot you can close your message box. Also, keep in mind that box is a pointer and you always must call deleteLater() method. Happy coding!

lincoln

@Cobra91151
great man, thanks for your answer, I was able to solve my problem already.
thanks again.