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...
I have compiled Qwt 6.3.0 and see that the headers and the libs have been placed in
/usr/local/qwt-6.3.0/include/
and
/usr/local/qwt-6.3.0/lib/
respectively.
I have build a Qt 6.7.0 app....
Qt Centre is a community site devoted to programming in C++ using the Qt framework developed at Digia.
If you have any problems with Qt or its usage, you can get help from the members of Qt community on our forum.
Don't forget to check out our links section for more Qt resources.
Qt is a cross-platform application and UI framework. Using Qt, you can write web-enabled applications once and deploy them across desktop, mobile and embedded operating systems without rewriting the source code.
How to edit QSpinBox through keyboard on Linux
Today 03:58 by gladysween