app.exec() never returns?

[marcel]

Yes, there is a way.
All widgets must be created after the QApplication instance.

#include <QPushButton>
 
...
This is where you create the application
...
QPushButton btn("Temporary button", NULL);
btn.show();
...
This is the part where you call exec.

#include <QPushButton>

...
This is where you create the application
...
QPushButton btn("Temporary button", NULL);
btn.show();
...
This is the part where you call exec.

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This should do it.
Regards