Unique Id of Qwidget

[alex1]

I want to do QHash which will be used key (some widget id)
how can I get a certain individual Id of qwidget for use it as a unique key?
objectname can not be used because QHash will contain widgets from different classes,
meaning they can be the widgets with the same name....

[gareth]

How about the pointer address (cast to an appropriately-sized integer, i.e. qint32 or qint64 depending on your platform)? For widgets within a process, this will be unique for each instance.

[ChrisW67]

objectname can not be used because QHash will contain widgets from different classes,
meaning they can be the widgets with the same name....

Only if you program it that way. Having each class set its object name to a UUID or QString("ClassName%1).arg(staticSequenceVariable++ ) in its constructor would be another approach.

[alex1]

Thanks very much.

But, what can I do to not be dependent on the platform?
QVariant do not want to use,
ifndef / endef also do not want to use.

[wysota]

I'd go for pointers or a unique number generator.

[alex1]

Thanks,
But a unique number will not work because key must be part of QWidget
So I need to use :{ ,
have other ideas?

[FelixB]

then you have to use the pointer adress.

btw, why must the key be part of QWidget?

[wysota]

Thanks,
But a unique number will not work because key must be part of QWidget

I don't see your point. It works quite fine for Qt Creator so I don't see why wouldn't it work for you.