Qt for Python

Both the feedbacks in the end are really helpful, i have tried @Pl45m4 approach of .ui and .ui to .py, I am not sure since i have not explored with designer/creator if we can create a delegate and add model data, etc in it, but only used it for general layouting and rest i code it later. But none the less Thanks for taking out time for the reply. @JonB Thanks for the brevity information, i was hoping to get some clarity on this back-end and front-end logic, and you gave me exactly that. I will definitely study more about signals and slots, and try to implement in my work to keep ui and backend logic separate. Thanks for the wisdom. Thanks alot all of you in the thread.

@jabroni Please read https://forum.qt.io/topic/113070/qt-code-of-conduct and stop writing rude posts! What @sonus89 wrote is actually quite clear: you have to install at least one Qt version (not only QtCreator) to get the examples...

@SGaist Ahh ok yes i think i get it now. Thank you

Contact the Riverbank Computing folks and check with them what your issues are with regard to their documentation.

Hello SGaist, Thank you for the article on custom styles. Regards, Nelson

Thanks @SGaist. I changed it to QTableView and ditched the checkboxes. Selecting rows works fine.

@lorc said in multimedia module: Do I need to manually impliment the video widget instead of using the design mode? Depends on if you want to use the default QVideoWidget or a modified implementation. For the default one try: (not tested as I'm not using Qt for Python right now) class: QVideoWidget header: PySide6.QtMultimediaWidgets else you have to place you classname and Py module name (without the `*.py extension) there

Hi, Don't go GUI operations in secondary threads.

Hi, It's simple: don't do that. Never try to access GUI related elements from other threads than the main thread. Use the worker object approach and signals and slots to communicate with the widgets.

Glad you found out and thanks for sharing ! Didn't you get a warning for that mismatch at some point ?

I got my answer : this issue is due to the way QStandardItemModel sorts the column, it only works if the parent item has valid item in the same column. The way I built the tree does not provide an item for all the columns of each appended row so I ended up with this issue. solution1 create these empty items solution 2 use a QSortFilterProxyModel Anyway a big thank you for your support attention and help.

Can you try forcing the style of the application to windowsvista or fusion ?

Hi and welcome to devnet, Which version of PySide6 ? On which OS ? What exactly happens ? How are you creating your application ?

@muxing It's useful for a large range of applications whether on the command line or using a GUI. It's used for automation, scientific computation, application extension, etc. As I wrote above, you have to be careful when you code for it (as for any other language, all have limits). As for the multi-threading part, check Python 3.13. The GIL is being removed.

@TheJester12121 said in Widget not able to create new widget ?: otherwindow = QWidget() This widget has no parent, it is not added to another widget directly or (better) on a layout belonging to parent widget. And no reference is kept to it in e.g. self. Hence Python will destroy it on exit from create_window(). Other languages (e.g. C++) would not. I don't know exactly where in https://www.pythonguis.com/tutorials/creating-multiple-windows/ you claim this precise code came from.

Ahh I figured. This was due to: QGroupBox { background-color: #3B4252; border: 1px solid #4C566A; border-radius: 5px; margin-top:20px; } margin-top:20px; cause this issue

You are firing a signal that belongs to a widget class which shall only happen in the main thread. Use the worker object approach with a QObject based class no QWidget there.

(Try to avoid loadUi at all cost, and rely on generating a Python file out of it https://doc.qt.io/qtforpython-6/tutorials/basictutorial/uifiles.html#option-a-generating-a-python-class )