[Interest] qobject_cast

[Igor Mironchik]

Hi,


> If sender() is a Channel*, then qobject_cast should not fail.
>
> Try to add this to your slot, this will print the inheritance list
>
>      qDebug() << "Looking for" << &Channel::staticMetaObject <<
> Channel::staticMetaObject.className() << "on" << sender() <<
> qobject_cast< Channel* > ( sender() )
>      const QMetaObject *mo = sender->metaObject();
>     while (mo != nullptr) {
>          qDebug() << mo << mo->className() << (mo ==
> &Channel::staticMetaObject ? "<-" : "");
>          mo = mo->superClass();
>      }
>
> This is roughly how QMetaObject::inherits() works. if you get the
> "<-", then qobject_cast should work as expected.

I moved code to dlls and now qobject_cast<> works....

Looking for 0xf39b050 Globe::Channel on Globe::ComoChannel(0x4210270, 
name = "Channel") Globe::ComoChannel(0x4210270, name = "Channel")

0xf04c018 Globe::ComoChannel

0xf39b050 Globe::Channel <-

0x663fc44c QObject


Thank you for the explanations...
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