[Qt-interest] Treating User defined type as QVariant via void*

[Thiago Macieira]

Em Quarta-feira 22 Setembro 2010, às 12:46:47, Stephen Kelly escreveu:
> You never use the macro Q_DECLARE_METATYPE
> 
> Have a read through the docs for QVariant and QMetaType.

By the way, if you declare Node* as a metatype, you'll be storing the pointer 
*value* in the variant, not the pointed contents.

If you then proceed to save the value to permanent storage (disk) or share it 
with another process, you'll recover a pointer that is completely invalid. Do 
not attempt to dereference it.

-- 
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
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