How to set QWidget background color?
69,788
Solution 1
You need to call setAutoFillBackground(True)
on the widget. By default, a QWidget
doesn't fill its background.
For more information, see the documentation for the setAutoFillBackground
property.
If you want to use an arbitrary background color, you need to modify the widget's palette instead:
p = w.palette()
p.setColor(w.backgroundRole(), Qt.red)
w.setPalette(p)
Solution 2
you can also use setStyleSheet
for example:
w.setAttribute(Qt.Qt.WA_StyledBackground, True)
w.setStyleSheet('background-color: red;')
Author by
Johan Råde
I did a Ph.D. in mathematics at University of Texas and a postdoc at Stanford University. I am one of the founders of Qlucore, a leading bioinformatics software company. I have 15 years experience of scientific computing in C++ and Python.
Updated on April 29, 2021Comments
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Johan Råde about 3 years
The line
w.setBackgroundRole(QPalette.Base)
in the code below has no effect. Why? How do I fix that?import sys from PySide.QtCore import * from PySide.QtGui import * app = QApplication(sys.argv) w = QWidget() w.setBackgroundRole(QPalette.Base) w.show() app.exec_()