Expert
Re: How to allow only one signal to be connected to a QObject's slot
How does having a callback at receiver end will help the receiver know that the signal is emitted (I mean that sender wants to send somting)?You can put the callback at either end.
Fair reasonFor a slot you can't really have an equivalent because slots can be called as regular methods.
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The "Q"
Re: How to allow only one signal to be connected to a QObject's slot
Instead of emitting a signal, one calls a notify method in the callback.Originally Posted by Santosh Reddy
Anyway I think my solution with an external connection manager is better as it retains the ability to both connect to the signal and to the slot for reasons other than what the OP wants while at the same time containing one-many semantics of a particular set of connections in a neat black box.
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Expert
Re: How to allow only one signal to be connected to a QObject's slot
Ok, I think there is a missunderstanding, may be my posts was not clear enough. All my posts talk about the the snippet you posted, and not about the callback pattern in general. I know things are possible the way you said.
Anyway, I get your point.
When you know how to do it then you may do it wrong.
When you don't know how to do it then it is not that you may do it wrong but you may not do it right.
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