From http://www.qtcentre.org/threads/21473-How-to-use-QSettings-to-read-INI-file

QSettingsReadAllINI.cpp

QSettings settings("test.ini", QSettings::IniFormat);
settings.beginGroup("players");
const QStringList childKeys = settings.childKeys();
foreach (const QString &childKey, childKeys)	
  qDebug() << settings.value(childKey);
settings.endGroup();