qPCR4vir

Could you explain that more? “a heavy cost : callbacks are based on std::function (will do a dynamic allocation, and create an indirection)” v.s. “Qt the cost of doing a `connect` is far smaller” ?? How Qt achieves that using string comparisons at run time? https://doc.qt.io/qt-5/signalsandslots-syntaxes.html

modern C++ refers to c++14/17, etc. and current recommendations to program in c++, not to modern style in web design. Your affirmation is that there is no hope for c++ programmers wanting to write a "simple" desktop application other than learn web design/programming just to build a functional GUI?

When you need to show the same UI on different devices (desktop, mobile, OSes) and media (screen, high-dpi-screen, printer)?

What is bad with mixing them like that into plain c++? Why may be better to have external tools?

Is not <bold blue size=16>Nana C++ Library</> easier to read/write than [B S16 C#00F]Nana C++ Library[bsc] (especially for a c++ programmer)?