[Qt-interest] Force the emission of a signal

[Ian Thomson]

If you have just one instance of your class, you can create a signal in 
your application and connect that signal to your class's signal. If you 
have multiple instances of your classes then this won't work unless you 
create a separate signal for each one, which is messy.

The qt docs say that signals can only be emitted by the class that 
defines them:

http://doc.trolltech.com/4.4/signalsandslots.html#signals

so either make a public function or a private friended function like you 
  suggested.

Cheers,
Ian.


Andrea Franceschini wrote:
> Obviously I can make appropriate private functions that emit the
> signals and declare the application class as a friend.
>