@yuvaram

If so, compile it with Network Download Example, which is officially available from Qt.

@Exotic_Devel said:

Q_SLOTS

Usar a macro em vez da keyword é recomendada quando você usa outras bibliotecas que podem colidir com o Qt em relação aos signals/slots, que é o caso do Boost.

@Jessica you're welcomed. Please don't forget to mark the post as solved.

Hi,

QT_NO_PRINTER is (or not) defined when compiling Qt, not when loading or not a module.
One thing you could is the qtHaveModule() function in your pro file and create the defines you need there.

Hope it helps