Qt dialogs in other lenguages...

[Lesiok]

Read about QTranslator.
You must create new QTranslator and set it in QApplication object. This is example code from my application which is working with Polish language.

QApplication app(argc, argv);
QTranslator qTtranslator;
qTtranslator.load("qt_pl",":/Resources");
app.installTranslator(&qTtranslator);

QApplication app(argc, argv);
QTranslator qTtranslator;
qTtranslator.load("qt_pl",":/Resources");
app.installTranslator(&qTtranslator);

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In QT dir look for qt_??.qm files.