@BrantFF said in How to set QProgressBar widget in vertically from Qt Designer?:

It will return to default value( here is Horizontal ) when I change other attributes.

Give an example of exactly one further change which causes Vertical to get replaced by Horizontal. And if it really does that the version of Qt Creator you are using. OIC, Qt Designer: v6.5.0. Give the change example (e.g. does it happen if you uncheck textVisible? does it change if you pick some other widget and change one of its attributes, so that you are saying any change at all causes reversion?) and ask someone with that Designer version if it happens to them.

@friedemannkleint I tried all that, I tried different versions of virtual environments. Finally I switched over to PyQt6 and now it works flawlessly.

@kaushikv Why will I use that when QML already has a treeview and the model isn't the problem? Plus I tagged thi question as Qt for Python.

@go4tli
Indeed, it was very well spotted by @SGaist, I don't think I would have noticed it!

Python could do with an override keyword to catch this, which it lacks. If you are interested for the future In Python, how do I indicate I'm overriding a method? or https://pypi.org/project/overrides/ suggest some code snippets which would catch such a mistake....

@demberto
No need for else: IMHO :) Now you hide if the base class setData() were to fail. To me

return super().set_data(index, value, role)

as the final line makes sense.

AFAIK, it should be doable.

Hi and welcome to devnet,

You might want to take inspiration from how Qt Creator does it.

Note that you will likely have to build Python bindings for that yourself.

Hi and welcome to devnet,

You might be interested in the Flow Layout example.

I figured out what was keeping the above fix for working with my app. I was using the showMaximized() command before creating the QWebEngineView. Turns out I have to create the view first and put it in the layout (I then hide it), then maximize the window, then show it. Seems like I shouldn't have to do all of that to keep the window from flickering, but I'll take it.

I made some progress. I recreated a new virtual environment and reinstalled PySide. However, when I set the environment variable I get an error. Note that I am using the example player that comes with PySide

(ffmpeg) C:\ffmpeg>
(ffmpeg) C:\ffmpeg>set QT_MEDIA_BACKEND=ffmpeg

(ffmpeg) C:\ffmpeg>python player.py
could not load multimedia backend "ffmpeg"
QtMultimedia is not currently supported on this platform or compiler.

(ffmpeg) C:\ffmpeg>

If I do not set the variable, the player starts fine.

@jsulm Thank you. I gotta take a look at it.

@JonB Yes, you are right. converting Qt.Checked/Unchecked to int() to make it work in PySide6.3.1. Thank you @SGaist @CristianMaureira @JonB !! Problem solved.

@jsulm My UI freezes when I press the button that goes to 'qthread_test' in that code snippet.
It starts to buffer and becomes unresponsive for a bit. That is the code sample that caused it. Yes there rare other elemetns in my code, but they do not connect ao any parts of this, it is mostly other elements like buttons. variables, etc.

So the one that creates a file is working but the one that changes a GUI element freezes ? Do I get you correctly ?