How to develop python qwidget for c++ QMainWindow?
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wrote on 19 Feb 2025, 09:40 last edited by
Want to code some python qwidget for my c++ MainWindow design. How to do so?
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Want to code some python qwidget for my c++ MainWindow design. How to do so?
@MonkeyBusiness said in How to develop python qwidget for c++ QMainWindow?:
Want to code some python qwidget for my c++ MainWindow design
Why? What is actually your use case?
You can execute Python code from C++ like explained here: https://docs.python.org/3/extending/embedding.html
But this will not work with Python and QWidgets because to execute Python code in a C++ application Python interpreter is called. -
@MonkeyBusiness said in How to develop python qwidget for c++ QMainWindow?:
Want to code some python qwidget for my c++ MainWindow design
Why? What is actually your use case?
You can execute Python code from C++ like explained here: https://docs.python.org/3/extending/embedding.html
But this will not work with Python and QWidgets because to execute Python code in a C++ application Python interpreter is called.wrote on 20 Feb 2025, 01:30 last edited by@jsulm hi, I would like a c++ pointer to the created python QWidget to be add to my c++ mainwindow.
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@jsulm hi, I would like a c++ pointer to the created python QWidget to be add to my c++ mainwindow.
wrote on 20 Feb 2025, 01:48 last edited by@MonkeyBusiness said in How to develop python qwidget for c++ QMainWindow?:
I would like a c++ pointer to the created python QWidget
But why?
Either write the rest of the GUI also in Python or rewrite the widget in C++. -
wrote on 1 Apr 2025, 13:25 last edited by
Hello @MonkeyBusiness
The use case you are describing is not very usual, and that's why you might have find difficult to do it.As stated before, you can embed a Python interpreter within your C++ application, which can help you to have a Python interface that can interact with some of the C++ objects of your application.
This is known as making a Qt/C++ application scriptable with Python.You could create a QWidget from Python, and display that like a QMessageBox, QLabel, QTreeWidget, etc, but that requires a bit more work, because that needs a runtime registration of the bindings to be generated.
There has been some internal work on dynamic Python bindings within C++ applications, but it's not released yet.
Like other recommendations, it seems that you can rely on .ui files for easily creating interfaces for your C++ application, rather than trying to expose python widgets to C++.