QVariant 自定义数据类型

#include
#include
#include



struct MyStruct
{
    int i;
};

Q_DECLARE_METATYPE(MyStruct)



int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    MyStruct s;
    s.i = 999;
    QVariant var;
    var.setValue(s); // copy s into the variant

    MyStruct s2 = var.value();
    QVariant::Type type = var.type();

    int value = s2.i;

    return a.exec();
}