Using QVariant with custom data type

[QAlex]

Hi all,
I read the documentation about QVariant with the little example that I report here:

QVariant v;
 
 MyCustomStruct c;
 if (v.canConvert<MyCustomStruct>())
     c = v.value<MyCustomStruct>(v);
 
 v = 7;
 int i = v.value<int>();                        // same as v.toInt()
 QString s = v.value<QString>();                // same as v.toString(), s is now "7"
 MyCustomStruct c2 = v.value<MyCustomStruct>(); // conversion failed, c2 is empty

QVariant v;

 MyCustomStruct c;
 if (v.canConvert<MyCustomStruct>())
     c = v.value<MyCustomStruct>(v);

 v = 7;
 int i = v.value<int>();                        // same as v.toInt()
 QString s = v.value<QString>();                // same as v.toString(), s is now "7"
 MyCustomStruct c2 = v.value<MyCustomStruct>(); // conversion failed, c2 is empty

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From this, I understand that I can initialize a QVariant variable only with data types supported by QVariant itself. Am I right?
Is there a way to initialize the variable v with a custom type?

Thanks for your anwers!
Alex

[Lykurg]

did you use Q_DECLARE_METATYPE? and obviously an integer can't be converted to your struct...

Eidt: misread your post. The good thing on QVariant is that you don't have to tell, which type it stores. You can check on runtime if it can be converted to one type you need.

As to your question: you can just use Q_DECLARE_METATYPE and you can use your own type with QVariant.

[QAlex]

Ok! I'll consider using this technique to define my own type.
I think it's the best solution for my porpouses.
I'll try and make you know!

[QAlex]

Well... I tried and it works!!!
I've created different kind of types and structures to use, but it works always!

Very interesting functionality,
Alex