Yes, but just before instantiating qwt the qApp pointer appears to be OK:
qDebug() << qApp; // Check
QApplication(0x7ffde3f14770) // Prints out
So it is definitely Qwt that's...
The warning is coming from the constructor of QWidget - what is a base class of QwtPlot - not from Qwt code.
For some reason the qApp pointer is broken - at least this is the check, that leads to...
Have a look at the itemeditor example.
Uwe Today, 08:13Hi, simply installing it using
pip install PyQt5
is not an option?
Ginsengelf
Hello,
I have QSpinBox on my dialog box, but its value can't changed through keyboard on Linux.
I can do that on Windows and MAC OS X.
There is demo example in widget section namely...
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How to edit QSpinBox through keyboard on Linux
Today 03:58 by gladysween