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50
51#include <QCoreApplication>
52#include <QDebug>
53#include <QVariant>
54#include "message.h"
55
56int main(int argc, char *argv[])
57{
58 QCoreApplication app(argc, argv);
59 QStringList headers;
60 headers << "Subject: Hello World"
61 << "From: address@example.com";
62 QString body = "This is a test.\r\n";
63
64//! [printing a custom type]
65 Message message(body, headers);
66 qDebug() << "Original:" << message;
67//! [printing a custom type]
68
69//! [storing a custom value]
70 QVariant stored;
71 stored.setValue(message);
72//! [storing a custom value]
73
74 qDebug() << "Stored:" << stored;
75
76//! [retrieving a custom value]
77 Message retrieved = qvariant_cast<Message>(v: stored);
78 qDebug() << "Retrieved:" << retrieved;
79 retrieved = qvariant_cast<Message>(v: stored);
80 qDebug() << "Retrieved:" << retrieved;
81//! [retrieving a custom value]
82
83 return 0;
84}
85

source code of qtbase/examples/corelib/tools/customtype/main.cpp