Question

How do I increase the size of the check box for the QCheckBox control and not the text size?

Thanks.

Answer 1

Jérôme has given you good advice. I will just give further examples.

QCheckBox::indicator {
     width: 40px;
     height: 40px;
 }

  QCheckBox::indicator:checked
  {
    image: url(../Checkbox_checked_normal.png);
  }
  QCheckBox::indicator:unchecked
  {
    image: url(../Checkbox_unchecked_normal.png);
  }

  QCheckBox::indicator:checked:hover
  {
    image: url(../Checkbox_checked_hovered.png);
  }
  QCheckBox::indicator:unchecked:hover
  {
    image: url(../Checkbox_unchecked_hovered.png);
  }
  QCheckBox::indicator:checked:pressed
  {
    image: url(../Checkbox_checked_pressed.png);
  }
  QCheckBox::indicator:unchecked:pressed
  {
    image: url(../Checkbox_unchecked_pressed.png);
  }
  QCheckBox::indicator:checked:disabled
  {
    image: url(../Checkbox_checked_disabled.png);
  }

Pay attention to difference between url() usages. In my example I am loading images from disk rather than embedded resource system which I find more appropriate. If you start url with (:/…) it loads from embedded resource system.

Then load your style sheet as below

QFile file("your path");
bool bOpened = file.open(QFile::ReadOnly);
assert (bOpened == true);

QString styleSheet = QLatin1String(file.readAll());

qApp->setStyleSheet (styleSheet);

I hope this helps.