Can I write custom Qt widget in pure C++, compile it and use in PyQt?
I'm trying to use the ctypes-opencv with qt and I have performance problems with python's code for displaying opencv's image in Qt form.
Lukáš Lalinský
You will have to write a Python wrapper for the widget, using the sip library (which is used by PyQt). There is a simple example for a Qt/C++ widget in the documentation.
来源：https://stackoverflow.com/questions/1607515/pyqt-custom-widget-in-c