QFrame setStyleSheet background-image not working on Windows

[retconx]

Hi,

frame = QFrame()
frame.setStyleSheet("background-image:url(<path-to-png-image>); background-position:center; background-repeat:no-repeat;")

is working on MacOs but not on Windows.

Does anyone has an idea, why?

[jsulm]

@retconx said in QFrame setStyleSheet background-image not working on Windows:

Does anyone has an idea, why?

Well, what exactly is path-to-png-image? Where is the image stored?

[retconx]

@jsulm
It is stored in an folder "pictures" in the main application folder:

basedir = os.path.dirname(__file__)
os.path.join(basedir, "pictures", "image.png")

path-to-png-image is a .png-file

[jsulm]

@retconx You did not answer first question.

[retconx]

@jsulm
path-to-png-image is os.path.join(basedir, "pictures", "image.png")

image.png is an usual .png-image file

[jsulm]

@retconx Did you make sure the path is valid?
You also did not show how you put the path into the style-sheet.

[retconx]

@jsulm The original code line is:
frame.setStyleSheet("background-image:url(" + os.path.join(basedir, "pictures", "image.png") + "); background-position:center; background-repeat:no-repeat;")

Pasting the output of print(os.path.join(basedir, "pictures", "image.png")) to Windows Explorer opens the picture. So the path should be valid.

[jsulm]

@retconx I'm not sure but maybe the problem is that Windows paths contain back-slashes? Try to put the same path but with forward slashes directly (just to see whether it makes a difference).

[retconx]

@jsulm No difference, unfortunately.
That is acutally the reason why I use os.path.join in order to get backslashes for Windows an forwardslashes for Mac/Linux.
And as I said, the path with backslashes works in Windows Explorer.

Maybe it has to do with any QFrame properties (shape, style...) which have to be set in Windows to show background-images? I will try a bit...