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qt - Translations of QMessageBox not work in Qt5.3

I'm a fan of Qt and update it frequently, Qt5.1->5.2->5.3.

However, the tranalations of Standard buttons like "Ok" "Cancel" "Save" do not work anymore in Qt5.3. They are not translated, but just plain English.

The Code for translations does NOT change through each version of Qt. like:

TRANSLATIONS = qt_fr.ts
QTranslator trans
trans.load("qt_fr");
a.installTranslator(&trans);

any idea?

[Update] AFAIN, it might be a bug. Go back to Qt5.1 is a slution if U dont have to use some improvements in new Qts.

See Question&Answers more detail:os

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Starting from Qt5.3 the qt_*.qm is divided into multiple files (qt*_*.qm) and now you have to copy qtbase_*.qm to translation directory and use together.

QString translationsPath(QLibraryInfo::location(QLibraryInfo::TranslationsPath));
QLocale locale = QLocale::system();

QTranslator qtTranslator;
if (qtTranslator.load(locale, "qt", "_", translationsPath))
    a.installTranslator(&qtTranslator);

QTranslator qtBaseTranslator;
if (qtBaseTranslator.load(locale, "qtbase", "_", translationsPath))
    a.installTranslator(&qtBaseTranslator);

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