Question

I am trying to set the background color for a double spin box, and I am not sure what function I should use.

I saw some function called SetBackgroundRole which accepts a Qt::ColorRole, but I am not sure how to use this one as well.

Kindly let me know, what’s the simple way to change the background color of a QComboBox or QDoubleSpinBox?

Answer 1

Using a QPalette isn’t guaranteed to work for all styles, because style authors are restricted by the different platforms’ guidelines and by the native theme engine.

To make sure your background color will be correct, I would suggest to use the Qt Style Sheet. Here is what I did to change the background color of a QComboBox:

myComboBox->setStyleSheet('QComboBox { background-color: blue; }');

I haven’t specifically tried for a QSpinBox, but I guess it’ll work the same !