QT/C++ GUI misconception

[Ini]

I found no answer for this Problem in C++/Qt on the internet:

command1
different command
different command
different command
.
.
.
like 1000 different commands
.
.
.
different command



No Loop. How does the GUI stay responsive, while this intensive processing??? You cannot write after every command a qWait or a processEvents()

I only found answers like put a qwait there put a processEvent there and hope it works. Which it clearly does not if there is no loop around it like in my example.

Is it a misconception of C++/Qt?

Why should somebody not want responsive GUI? In this case its not possible in c++ is it?

I think my example is very clear, I hope for simple answers