Q_object

[Mariane]

What is the Q_OBJECT macro, please? I don't mean what's the code
corresponding to it, but what does it do?

Mariane

[Codepoet]

It defines some class members needed for reflection and other special Qt features provided by classes derived from QObject.

[Everall]

You have to put the Q_OBJECT macro in every class where you want to use signals and slots.
You can read more about it in the documentation : signals and slots.

Cheers

[wysota]

You have to put the Q_OBJECT macro in every class where you want to use signals and slots.

This is not exactly true. You can omit the macro if you derive from a class which had it defined and you don't introduce any new signals or slots. If any of these two conditions is not met, you have to use that macro.

[Everall]

@Wysota :Yes, you explained it in a better analytical way.

What do you think of the following ;) :

You have to put the Q_OBJECT macro in every class where you want to use your own signals and slots.

Cheers

[Mariane]

Thank you

Mariane