QSettings
lastmod 2026-11-10created 2014-08-283 edits
QSettings is a class for saving and loading Qt application settings. By default it stores them in the registry on Windows, plists on macOS, and INI files on Linux, all through the same API. Key-value pairs are written and read with setValue() and value(), and beginGroup() divides them into a hierarchy. The storage format can also be forced to INI, or an arbitrary file can be specified.
The QSettings class provides persistent platform-independent application settings.