Use QVariant with custon data types

[mcosta]

you can store whatever you want, in fact QColor isn't supported natively (there's no toColor() method), because it's not part of QtCore.

you can use it this way:

MyType t;
QVariant var = t;
...
MyType t2 = var.value<MyType>();

You can do this only for Registered types otherwise you obtain a compiler error
You can register a custom type in this way

Q_DECLARE_METATYPE(MyType);

Q_DECLARE_METATYPE(MyType);

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If you want to register also a type name you can use

int myTypeId = qRegisterMetaType<MyType>("MyType")

int myTypeId = qRegisterMetaType<MyType>("MyType")

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