how to define a macro function with included the signals key words?

nicker player

when I used the macro liked this

#define FUNCTION(NAME)\
signals:\
void on##NAME##Function();

it dosent work. so is it possible that the macro could include the signals key words?

CassD

hi

doesn't work this way. There's no need of macros for this. the onSomeEvent method is an autoconnection pattern that allows you to create a method that acts like a slot and autoconnects to the matching signal.
just name your signal "someEvent", and then you can create an autoconnection to that signal by naming the method "onSomeEvent". That's all.

SGaist

Hi,

@nicker-player what exactly are you trying to do ? With which version of Qt ?

@CassD that's wrong, the onXYZ pattern is used in QML however that's not the case for C++. If you are thinking about the Designer auto connect feature, the pattern is different and it's anyway no recommended to use it.

CassD

there's something similar that exists in c++ side that I remember experimenting a bit at my beginning with Qt. Don't remember what exactly but possibly QtWidgets and designer yes. But not recommended indeed.

nicker player

I just dont want to input so many codes. i found that if the macro contains the signals key words wouldnt work.so just forget it.

jsulm

@nicker-player You can also use "Q_SIGNALS" instead of "signals".
"it dosent work" - is not a problem description.
Btw. signals is not a keyword.

CassD

@nicker-player said in how to define a macro function with included the signals key words?:

I just dont want to input so many codes. i found that if the macro contains the signals key words wouldnt work.so just forget it.

I don't understand what you want to achieve (and I'm obviously not the only one). Please explain us clearly and correctly what you are trying to do.
No matter what you are trying to do, the way you are trying to do it is a non-sense.

nicker player

@jsulm
thanks.you just helped me.