moc - w3toppers.com

Qt moc with implementations inside of header files?

If you want to declare and implement a QObject subclass in you cpp file, you have to manually include the moc file. For example: (file main.cpp) struct SubObject : QObject { Q_OBJECT }; //… #include “main.moc” You have to rerun moc (make qmake) after adding the #include statement.

Why is important to include “.moc” file at end of a Qt Source code file?

It’s necessary if you define QObject subclasses with the Q_OBJECT macro in a .cpp file. When you do so: qmake must generate rules inside your Makefile to invoke moc on that .cpp file. That special (hackish?) inclusion triggers qmake to do so, and tells it which would be moc‘s output file (teststring.moc) when invoked on … Read more