[SOLVED]I need explanation about connect()

[unixmania]

Signal and slot mechanism is heart of qt.So i want to learn it thoroughly.There are somethings that preoccupies me. QObject::Connect() has five different form.One of them takes 3 arguments.Qt documentation(5.1.0) says about it that
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QMetaObject::Connection QObject::connect(const QObject * sender, const char * signal, const char * method, Qt::ConnectionType type = Qt::AutoConnection) const
This function overloads connect().

Connects signal from the sender object to this object's method.

Equivalent to connect(sender, signal, this, method, type).

Every connection you make emits a signal, so duplicate connections emit two signals. You can break a connection using disconnect().

Note: This function is thread-safe.

See also disconnect().
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About "Equivalent to connect(sender, signal, this, method, type)." above:
1-Does class which pointing by *this have to be a subclass of QObject?
2-Does method had to be declared as custom slot?(in case of it is not member any QObject subclass)
3-Do I have to use SLOT macro such SLOT ( method ( args ) ) ?
4-Do I have to use Q_OBJECT macro in header?

All questions above about qt5. Thanks.

[SGaist]

Hi

1. No, you can declare slots as public, protected or private.
2. Using this form of connect, yes
3. Yes you have to

You can read more about it in this "chapter":http://qt-project.org/doc/qt-5.0/qtcore/signalsandslots.html

[unixmania]

Thank you again.Answers are
1-Yes
2-Yes
3-Yes
4-Yes