main.cpp Example File

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 #include <QApplication>
 #include <QPushButton>
 #include <QTranslator>

 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);

     QTranslator translator;
     translator.load("hellotr_la");
     app.installTranslator(&translator);

     QPushButton hello(QPushButton::tr("Hello world!"));
     hello.resize(100, 30);

     hello.show();
     return app.exec();
 }