如何获取 Pyqt5 中 QlineEdit 小部件的当前背景颜色？

Question

How do I get the background color of a QlineEdit widget in pyqt5?

Answer 1

To complete my comment, this regex "(?<=background-color:)(.*?)(?=[;\}])" can do the job for simple cases (see simulation I did here: https://regex101.com/r/SEB9hQ/1 ). You can improve it to fit your needs. The captured group should be strip() ed to get rid of spaces.

Answer 2

By default, QLineEdit uses the Base palette role for its background and also uses that role for its backgroundRole() .

Since basic properties of stylesheets set some color roles for the local widget palette ^[1] , the solution is to use that along with the role:

background = label.palette().color(label.backgroundRole())
print(background.name())

^{[1] See this answer to know how QSS colors can alter a widget palette.}