How to set QPalette back to default system palette?

Question

I start my application initially in a dark color theme according to this example.

I would like to make possible for users, to switch back to their current default system color profiles of their operating system (as I start that application without setting QPalette). Is that posssible?

You may save current palette, before changing it. – Dmitry Sazonov Aug 06 '15 at 07:16 — Dmitry Sazonov, Aug 06 '15 at 07:16

score 12 · Accepted Answer · answered Aug 06 '15 at 08:05

12

One possible way is just use default settings and parameters:

void MainWindow::on_pushButton_clicked()
{
    qApp->setPalette(this->style()->standardPalette());
    qApp->setStyle(QStyleFactory::create("WindowsVista"));
    qApp->setStyleSheet("");
}

But this way has some limitation: we need some QWidget for setting palette, in my way I use this poiter to QMainWindow, however it is not so serious problem i think.

answered Aug 06 '15 at 08:05

t3ft3l--i

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You can use qApp->setPalette(QApplication::style()->standardPalette()); to avoid the need for "this" pointer. – RandomGuy Feb 07 '18 at 14:44
or just `qApp->setStyle(qApp->style()->standardPalette());`, the, in my eyes, most intuitive one – IceFire Jan 30 '21 at 13:40

How to set QPalette back to default system palette?

1 Answers1