how to use tr() for QMessageBox?

[Byngl]

What version of Qt are you using?

This should work for 4.2.2 (it does for me):

QT_TRANSLATE_NOOP("QDialogButtonBox", "&Yes");
QT_TRANSLATE_NOOP("QDialogButtonBox", "&No");

QT_TRANSLATE_NOOP("QDialogButtonBox", "&Yes");
QT_TRANSLATE_NOOP("QDialogButtonBox", "&No");

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Check QDialogButtonBox.cpp for other strings to translate

[bender86]

You should load a Qt library translator. There are some translators in %QTDIR%\translations which translate every user visible text in Qt library. French one is incomplete, but you may modify it in linguist.

QTranslator *qtTranslator  = new QTranslator;
QTranslator *appTranslator = new QTranslator;
qtTranslator->load(
	QString("qt_%1").arg(lang),
	QLibraryInfo::location(QLibraryInfo::TranslationsPath)
);
appTranslator->load(...); // Load your translator
 
installTranslator(appTranslator);
installTranslator(qtTranslator);

QTranslator *qtTranslator  = new QTranslator;
QTranslator *appTranslator = new QTranslator;
qtTranslator->load(
	QString("qt_%1").arg(lang),
	QLibraryInfo::location(QLibraryInfo::TranslationsPath)
);
appTranslator->load(...); // Load your translator

installTranslator(appTranslator);
installTranslator(qtTranslator);

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