Possible for a signal to return a reply?

[grantbj74]

Hi,

I was just wondering if an emit signal can return a reply?

Thanks in advance,
Brendan

[ChrisW67]

No, signals are implemented as functions returning void. A signal can be connected to many receivers. Allowing a return value from the receiver(s) means the system has to have some form of arbitration system to determine which return value is returned via the single signal function. It also needs a return value when there is no receiver connected. Boost::signals does something like this, Qt does not.