CODEWITHSUNDEEP
qtqt4
thnkwthprtls
thnkwthprtls

Reputation: 3487

Qt - compiler won't recognize "connect"

I'm working in Qt 4.7, and I have a portion of code with signals and slots. It's set up just as normal, namely:

#include <QObject>

//Earlier code...
connect(my_thread, SIGNAL(started()), other_thread, SLOT(process()));
connect(my_thread, SIGNAL(finished()), third_thread, SLOT(some_slot()));
//Later code...

However, when I build it gives an error for each statement saying "C3861: 'connect': identifier not found" Does anyone have any ideas why this may be? Thanks!

Upvotes: 10

Views: 8062

Answers (1)

Zlatomir
Zlatomir

Reputation: 7034

If you use connect in code that is not part of a QObject derived class, precede the connect with the QObject::, so the code will become:

//Earlier code...
QObject::connect(my_thread, SIGNAL(started()), other_thread, SLOT(process()));

LE: basically you call the static connect method and when you are not in the scope of a QObject (or a QObject derived class) you need to fully specify the connect you want to call, else the compiler doesn't find it (or it might find a wrong connect in the current scope)

Upvotes: 23

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