C++ (Qt)
#include <QTextCodec>
 
int main(int argc, char *argv[])
{
 QApplication app(argc, argv);
 
 QTextCodec* tc = QTextCodec::codecForName("utf-8");
 QTextCodec::setCodecForTr(tc);
 QTextCodec::setCodecForCStrings(tc);
 QTextCodec::setCodecForLocale(tc);
 
 ...
 
 return app.exec();
}