[Qt-interest] "indexOfMethod" always return -1 if it's parameter is not a slot or sigal, why

[Yao Huiji]

thank you very much [?]

2009/8/18 Andre Somers <andre at familiesomers.nl>

> Yao Huiji wrote:
> >  In my class , there is a normal method named "SayHi", when I call
> > "indexOfMethod" ,the return value is -1, but after I use "signals" or
> > "slots" to modify this method , it will return the right method index.
> > I don't know why ?
> >
> Because this is a function of the Qt meta-object system, and that only
> works for classes that:
> 1) inherit QObject, and
> 2) use the Q_OBJECT macro in the class definition, and
> 3) is only available for methods that are invokable: signals, slots, and
> every method you use the Q_INVOKABLE macro on
>
> Qt adds extra functionality to standard C++, but it does not change
> normal C++.
>
> André
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